Picks commits from main to include in 0.14.6

[RCHowell]

Description

Adds commits,

be6d8e44 Updates decimal PR with null/missing
52d978fd Add some tests missing from #1492 (#1493)
416527c4 Add implementation of date, time, and timestamp values for `PartiQLValueTextWriter` (#1492)
0b2cd464 Update conformance GH action gradle version (#1485)
1c3f1b92 Adds support for parameterized decimal cast (#1483)
6d98c8c2 Fix Functions.md heading for text functions (#1479)
d04d3dc4 Changes INT/INTEGER to be an alias for INT4 (#1473)
005dbced Fixes ANTLR parser grammar and renames parser g4 file (#1474)
2e22c438 delete staticTypeMeta (#1465)
2f2ab74f Upgrade JMH plugin dependency to 0.7.2 (#1462)
0972fbea Shade antlr dependency for partiql-parser and partiql-lang (#1439)
04cbdae3 Remove unnecessary conversion steps in PartiQLValueIonReaderBuilder (#1456)
f76705e2 Add custom ktlint rules to prevent Java interop issues (#1414)

Other Information

• Updated Unreleased Section in CHANGELOG: [YES/NO]
  Yes

• Any backward-incompatible changes? [YES/NO]
  No

• Any new external dependencies? [YES/NO]
  No

• Do your changes comply with the Contributing Guidelines
  and Code Style Guidelines? [YES/NO]
  Yes

License Information

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[github-actions]

Conformance comparison report

	Base (7b78453)	bb5b2ce	+/-
% Passing	92.54%	92.54%	0.00%
✅ Passing	5384	5384	0
❌ Failing	434	434	0
🔶 Ignored	0	0	0
Total Tests	5818	5818	0

Number passing in both: 5384

Number failing in both: 434

Number passing in Base (7b78453) but now fail: 0

Number failing in Base (7b78453) but now pass: 0