chore(main): release 2.1.1

[github-actions]

🤖 I have created a release beep boop

2.1.1 (2026-06-06)

### Fixed

• deps: update junit-framework monorepo to v6.1.0 (47b3be2)

### Changed

• add release-please configuration (6adc4d5)
• deps: update actions/checkout action to v6.0.3 (28bf354)
• deps: update dependency com.google.devtools.ksp to v2.3.8 (00023c4)
• deps: update dependency com.google.devtools.ksp to v2.3.9 (a4fa5d1)
• deps: update googleapis/release-please-action action to v5 (dfb7139)
• deps: update gradle to v9.5.1 (90d9c4f)
• deps: update kotlin monorepo to v2.4.0 (e23b0fe)
• deps: update mikepenz/action-junit-report action to v6.4.1 (30c93a2)
• deps: update plugin com.gradle.develocity to v4.4.2 (a845622)
• deps: update zizmorcore/zizmor-action action to v0.5.6 (719186b)
• enable semantic commits for Renovate (b362b10)
• move Renovate config to .github/renovate.json5 (271d154)
• pin GH Actions version comments to exact semver (0639702)

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