Fix matter_yamltests with Python 11 again.

[bzbarsky-apple]

Due to https://docs.python.org/3.11/whatsnew/3.11.html#dataclasses, the previous code fails: it's using a mutable class instance as a default values of a dataclass field.

[github-actions]

PR #26464: Size comparison from 7b5ecb2 to 4ba50aa

Increases (2 builds for bl702, nrfconnect)

platform	target	config	section	7b5ecb2	4ba50aa2	change	% change
bl702	lighting-app	bl702	.debug_info	40943088	40943089	1	0.0
			.text	965470	965472	2	0.0
nrfconnect	all-clusters-app	nrf52840dk_nrf52840	(read/write)	1176336	1176352	16	0.0
			text	807272	807276	4	0.0

Decreases (4 builds for bl602, cc32xx, nrfconnect)

platform	target	config	section	7b5ecb2	4ba50aa2	change	% change
bl602	lighting-app	bl602	(read/write)	1354998	1354990	-8	-0.0
			.text	1035978	1035974	-4	-0.0
		bl602+rpc	.text	1067334	1067332	-2	-0.0
cc32xx	lock	CC3235SF_LAUNCHXL	.debug_info	19674627	19674626	-1	-0.0
nrfconnect	all-clusters-minimal-app	nrf52840dk_nrf52840	text	778212	778208	-4	-0.0

Full report (11 builds for bl602, bl702, cc32xx, mbed, nrfconnect, qpg)

platform	target	config	section	7b5ecb2	4ba50aa2	change	% change
bl602	lighting-app	bl602	(read/write)	1354998	1354990	-8	-0.0
			.bss	87886	87886	0	0.0
			.data	9648	9648	0	0.0
			.text	1035978	1035974	-4	-0.0
		bl602+rpc	(read/write)	1401266	1401266	0	0.0
			.bss	95934	95934	0	0.0
			.data	10040	10040	0	0.0
			.text	1067334	1067332	-2	-0.0
bl702	lighting-app	bl702		0	0	0	0.0
			(read only)	3358	3358	0	0.0
			(read/write)	1185759	1185759	0	0.0
			.bleromro	6342	6342	0	0.0
			.bleromrw	124	124	0	0.0
			.boot2	328	328	0	0.0
			.bss	67585	67585	0	0.0
			.bss_psram	24368	24368	0	0.0
			.comment	48	48	0	0.0
			.data	3952	3952	0	0.0
			.debug_abbrev	1550204	1550204	0	0.0
			.debug_aranges	132944	132944	0	0.0
			.debug_frame	488804	488804	0	0.0
			.debug_info	40943088	40943089	1	0.0
			.debug_line	5301455	5301455	0	0.0
			.debug_loc	3424613	3424613	0	0.0
			.debug_ranges	372344	372344	0	0.0
			.debug_str	3708223	3708223	0	0.0
			.hbn	536	536	0	0.0
			.hbn_noinit	260	260	0	0.0
			.init	342	342	0	0.0
			.init_array	140	140	0	0.0
			.psram	0	0	0	0.0
			.riscv.attributes	47	47	0	0.0
			.rodata	106304	106304	0	0.0
			.rsvd	4	4	0	0.0
			.sha_ocram	72	72	0	0.0
			.shstrtab	304	304	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	580786	580786	0	0.0
			.symtab	175264	175264	0	0.0
			.tcm_data	28	28	0	0.0
			.tcmcode	3358	3358	0	0.0
			.text	965470	965472	2	0.0
		bl702+rpc		0	0	0	0.0
			(read only)	3358	3358	0	0.0
			(read/write)	1273555	1273555	0	0.0
			.bleromro	6342	6342	0	0.0
			.bleromrw	124	124	0	0.0
			.boot2	328	328	0	0.0
			.bss	75633	75633	0	0.0
			.bss_psram	24768	24768	0	0.0
			.comment	48	48	0	0.0
			.data	4504	4504	0	0.0
			.debug_abbrev	1706954	1706954	0	0.0
			.debug_aranges	141224	141224	0	0.0
			.debug_frame	516776	516776	0	0.0
			.debug_info	45848902	45848902	0	0.0
			.debug_line	5716360	5716360	0	0.0
			.debug_loc	3626917	3626917	0	0.0
			.debug_ranges	397648	397648	0	0.0
			.debug_str	4133328	4133328	0	0.0
			.hbn	536	536	0	0.0
			.hbn_noinit	260	260	0	0.0
			.init	342	342	0	0.0
			.init_array	156	156	0	0.0
			.psram	0	0	0	0.0
			.riscv.attributes	47	47	0	0.0
			.rodata	120144	120144	0	0.0
			.rsvd	4	4	0	0.0
			.sha_ocram	72	72	0	0.0
			.shstrtab	304	304	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	641456	641456	0	0.0
			.symtab	193600	193600	0	0.0
			.tcm_data	28	28	0	0.0
			.tcmcode	3358	3358	0	0.0
			.text	1038096	1038096	0	0.0
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	605002	605002	0	0.0
			(read/write)	204164	204164	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197576	197576	0	0.0
			.comment	206	206	0	0.0
			.data	1468	1468	0	0.0
			.debug_abbrev	957619	957619	0	0.0
			.debug_aranges	101232	101232	0	0.0
			.debug_frame	342080	342080	0	0.0
			.debug_info	19674627	19674626	-1	-0.0
			.debug_line	2671903	2671903	0	0.0
			.debug_line_str	513	513	0	0.0
			.debug_loc	33340	33340	0	0.0
			.debug_loclists	1491139	1491139	0	0.0
			.debug_ranges	4984	4984	0	0.0
			.debug_rnglists	94412	94412	0	0.0
			.debug_str	3131828	3131828	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	104314	104314	0	0.0
			.shstrtab	265	265	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	483089	483089	0	0.0
			.symtab	287232	287232	0	0.0
			.text	498564	498564	0	0.0
mbed	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2495056	2495056	0	0.0
			.bss	216304	216304	0	0.0
			.data	5144	5144	0	0.0
			.text	1457740	1457740	0	0.0
nrfconnect	all-clusters-app	nrf52840dk_nrf52840	(read only)	4	4	0	0.0
			(read/write)	1176336	1176352	16	0.0
			bss	155563	155563	0	0.0
			rodata	132752	132752	0	0.0
			text	807272	807276	4	0.0
	all-clusters-minimal-app	nrf52840dk_nrf52840	(read only)	4	4	0	0.0
			(read/write)	1123444	1123444	0	0.0
			bss	154757	154757	0	0.0
			rodata	109748	109748	0	0.0
			text	778212	778208	-4	-0.0
	all-clusters-app	nrf7002dk_nrf5340_cpuapp	(read only)	4	4	0	0.0
			(read/write)	1436080	1436080	0	0.0
			bss	135303	135303	0	0.0
			rodata	228768	228768	0	0.0
			text	777936	777936	0	0.0
qpg	lighting-app	qpg6105+debug	(read/write)	1169616	1169616	0	0.0
			.bss	99632	99632	0	0.0
			.data	856	856	0	0.0
			.text	616716	616716	0	0.0
	lock-app	qpg6105+debug	(read/write)	1139484	1139484	0	0.0
			.bss	94824	94824	0	0.0
			.data	856	856	0	0.0
			.text	586584	586584	0	0.0