Bump org.jetbrains.changelog from 2.1.0 to 2.1.2 #224

Unit Tests Report: Gradle 8.1.1 @ windows-latest ✅

Report	Passed	Time
build/test-results/test/TEST-org.jetbrains.grammarkit.GrammarKitPluginSpec.xml	2✅	13s
build/test-results/test/TEST-org.jetbrains.grammarkit.tasks.GenerateLexerTaskSpec.xml	2✅	58s
build/test-results/test/TEST-org.jetbrains.grammarkit.tasks.GenerateParserTaskSpec.xml	2✅	3s

2 tests were completed in 13s with 2 passed, 0 failed and 0 skipped.

Test suite	Passed	Failed	Skipped	Time
org.jetbrains.grammarkit.GrammarKitPluginSpec	2✅			13s

✅ support centralized repository declaration
✅ grammarKit-specific tasks

2 tests were completed in 58s with 2 passed, 0 failed and 0 skipped.

Test suite	Passed	Failed	Skipped	Time
org.jetbrains.grammarkit.tasks.GenerateLexerTaskSpec	2✅			58s

✅ reuse configuration cache
✅ run lexer

2 tests were completed in 3s with 2 passed, 0 failed and 0 skipped.

Test suite	Passed	Failed	Skipped	Time
org.jetbrains.grammarkit.tasks.GenerateParserTaskSpec	2✅			3s

✅ run parser
✅ reuse configuration cache