Size reports: Don't comment on outdated builds

[kpschoedel]

Problem

gh_report.py may send comments on builds that are already outdated,
and may do so out of chronological order, which clutters PRs and may
eclipse the actually relevant report.

Change overview

Before commenting, check that the report is for the latest commit.

Testing

Offline run identified and correctly handled such a case.

scripts/tools/memory/gh_report.py --db=/tmp/test.db --log-level=debug \
    --pr --github-repo project-chip/connectedhomeip \
    --github-limit-artifacts=500 --github-limit-artifact-pages=100 \
    --github-keep --github-comment --github-dryrun-comment

[github-actions]

PR #10565: Size comparison from c4660e6 to 613ff1a

8 builds

platform	target	config	section	c4660e6	613ff1a	change	% change
k32w	lock-app	k32w061+debug	.bss	69052	69052	0	0.0
			.data	1864	1864	0	0.0
			.text	515444	515444	0	0.0
	shell	k32w061+debug	.bss	55080	55080	0	0.0
			.data	672	672	0	0.0
			.text	357172	357172	0	0.0
	lighting-app	k32w061+se05x+release	.bss	78560	78560	0	0.0
			.data	1900	1900	0	0.0
			.text	614116	614116	0	0.0
p6	lock-app	default	.bss	68216	68216	0	0.0
			.data	2416	2416	0	0.0
			.heap	962712	962712	0	0.0
			.text	1126544	1126544	0	0.0
qpg	lighting-app	qpg6100+debug	.bss	53536	53536	0	0.0
			.data	996	996	0	0.0
			.text	486352	486352	0	0.0
	lock-app	qpg6100+debug	.bss	52488	52488	0	0.0
			.data	952	952	0	0.0
			.text	462544	462544	0	0.0
	persistent-storage-app	qpg6100+debug	.bss	17778	17778	0	0.0
			.data	280	280	0	0.0
			.text	102704	102704	0	0.0
telink	lighting-app	tlsr9518adk80d	bss	70984	70984	0	0.0
			noinit	33216	33216	0	0.0
			text	458376	458376	0	0.0

14 builds

platform	target	config	section	c4660e6	613ff1a	change	% change
efr32	lighting-app	BRD4161A	.bss	118020	118020	0	0.0
			.data	1800	1800	0	0.0
			.text	782732	782732	0	0.0
	lock-app	BRD4161A	.bss	115892	115892	0	0.0
			.data	1760	1760	0	0.0
			.text	761988	761988	0	0.0
	window-app	BRD4161A	.bss	116212	116212	0	0.0
			.data	1764	1764	0	0.0
			.text	762896	762896	0	0.0
	lighting-app	BRD4161A+rpc	.bss	131348	131348	0	0.0
			.data	1852	1852	0	0.0
			.text	762476	762476	0	0.0
linux	all-clusters-app	debug	.bss	52144	52144	0	0.0
			.data	978	978	0	0.0
			.data.rel.ro	58368	58368	0	0.0
			.dynamic	592	592	0	0.0
			.got	4072	4072	0	0.0
			.init	27	27	0	0.0
			.init_array	504	504	0	0.0
			.rodata	135637	135637	0	0.0
			.text	1322082	1322082	0	0.0
	chip-tool	debug	.bss	17552	17552	0	0.0
			.data	1584	1584	0	0.0
			.data.rel.ro	83264	83264	0	0.0
			.dynamic	592	592	0	0.0
			.got	4328	4328	0	0.0
			.init	27	27	0	0.0
			.init_array	416	416	0	0.0
			.rodata	174432	174432	0	0.0
			.text	2422901	2422901	0	0.0
	ota-provider-app	debug	.bss	37472	37472	0	0.0
			.data	752	752	0	0.0
			.data.rel.ro	23144	23144	0	0.0
			.dynamic	592	592	0	0.0
			.got	4008	4008	0	0.0
			.init	27	27	0	0.0
			.init_array	440	440	0	0.0
			.rodata	109720	109720	0	0.0
			.text	1009730	1009730	0	0.0
	ota-requestor-app	debug	.bss	205728	205728	0	0.0
			.data	752	752	0	0.0
			.data.rel.ro	24440	24440	0	0.0
			.dynamic	592	592	0	0.0
			.got	4136	4136	0	0.0
			.init	27	27	0	0.0
			.init_array	512	512	0	0.0
			.rodata	127768	127768	0	0.0
			.text	1129394	1129394	0	0.0
	shell	debug	.bss	16072	16072	0	0.0
			.data	242	242	0	0.0
			.data.rel.ro	35120	35120	0	0.0
			.dynamic	592	592	0	0.0
			.got	3496	3496	0	0.0
			.init	27	27	0	0.0
			.init_array	336	336	0	0.0
			.rodata	71855	71855	0	0.0
			.text	568898	568898	0	0.0
	tv-app	debug	.bss	216368	216368	0	0.0
			.data	2032	2032	0	0.0
			.data.rel.ro	55504	55504	0	0.0
			.dynamic	592	592	0	0.0
			.got	4400	4400	0	0.0
			.init	27	27	0	0.0
			.init_array	608	608	0	0.0
			.rodata	151336	151336	0	0.0
			.text	1464034	1464034	0	0.0
	bridge-app	debug+rpc	.bss	52880	52880	0	0.0
			.data	976	976	0	0.0
			.data.rel.ro	25464	25464	0	0.0
			.dynamic	592	592	0	0.0
			.got	3944	3944	0	0.0
			.init	27	27	0	0.0
			.init_array	400	400	0	0.0
			.rodata	110388	110388	0	0.0
			.text	1051349	1051349	0	0.0
	lighting-app	debug+rpc	.bss	42200	42200	0	0.0
			.data	1106	1106	0	0.0
			.data.rel.ro	52208	52208	0	0.0
			.dynamic	608	608	0	0.0
			.got	4104	4104	0	0.0
			.init	27	27	0	0.0
			.init_array	528	528	0	0.0
			.rodata	127537	127537	0	0.0
			.text	1252498	1252498	0	0.0
mbed	lighting-app	CY8CPROTO_062_4343W+release	.bss	172148	172148	0	0.0
			.data	5464	5464	0	0.0
			.heap	858832	858832	0	0.0
			.text	1220072	1220072	0	0.0
	lock-app	CY8CPROTO_062_4343W+release	.bss	171084	171084	0	0.0
			.data	5432	5432	0	0.0
			.heap	859928	859928	0	0.0
			.text	1198056	1198056	0	0.0

12 builds

platform	target	config	section	c4660e6	613ff1a	change	% change
esp32	all-clusters-app	c3devkit	.dram0.bss	60264	60264	0	0.0
			.dram0.data	16208	16208	0	0.0
			.flash.rodata	198632	198632	0	0.0
			.flash.text	869794	869794	0	0.0
			.iram0.text	57330	57330	0	0.0
		m5stack	.dram0.bss	62760	62760	0	0.0
			.dram0.data	32084	32084	0	0.0
			.flash.rodata	207076	207076	0	0.0
			.flash.text	900411	900503	92	0.0
			.iram0.text	125115	125115	0	0.0
nrfconnect	lighting-app	nrf52840dk_nrf52840	bss	112316	112316	0	0.0
			rodata	97576	97576	0	0.0
			text	577696	577696	0	0.0
	lock-app	nrf52840dk_nrf52840	bss	111348	111348	0	0.0
			rodata	94072	94072	0	0.0
			text	559136	559136	0	0.0
	pigweed-app	nrf52840dk_nrf52840	bss	51772	51772	0	0.0
			rodata	45772	45772	0	0.0
			text	339392	339392	0	0.0
	pump-app	nrf52840dk_nrf52840	bss	111416	111416	0	0.0
			rodata	95052	95052	0	0.0
			text	562308	562308	0	0.0
	pump-controller-app	nrf52840dk_nrf52840	bss	111356	111356	0	0.0
			rodata	94132	94132	0	0.0
			text	558912	558912	0	0.0
	shell	nrf52840dk_nrf52840	bss	107316	107316	0	0.0
			rodata	71640	71640	0	0.0
			text	518908	518908	0	0.0
	lighting-app	nrf52840dk_nrf52840+rpc	bss	108556	108556	0	0.0
			rodata	88360	88360	0	0.0
			text	550900	550900	0	0.0
		nrf5340dk_nrf5340_cpuapp	bss	113688	113688	0	0.0
			rodata	92816	92816	0	0.0
			text	507156	507156	0	0.0
	lock-app	nrf5340dk_nrf5340_cpuapp	bss	112720	112720	0	0.0
			rodata	89332	89332	0	0.0
			text	488592	488592	0	0.0
	shell	nrf5340dk_nrf5340_cpuapp	bss	108300	108300	0	0.0
			rodata	66284	66284	0	0.0
			text	439504	439504	0	0.0