Update gradle/wrapper-validation-action action to v3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
gradle/wrapper-validation-action	action	major	v2 -> v3

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Release Notes

gradle/wrapper-validation-action (gradle/wrapper-validation-action)

v3

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[TWiStErRob]

Heads up: https://github.com/gradle/actions/releases/tag/v3.3.0, specifically:

• The caching protocol version has changed in this release
  (meaning GHA caches will be unused after merging this, should be auto-removed in 7 days)
• New action gradle/actions/wrapper-validation
  so at the very minimum migrate gradle/wrapper-validation-action to gradle/actions/wrapper-validation, but also see next point.
• setup-gradle action can now perform wrapper-validation automatically
  (see action.yml

[TWiStErRob]

• Raised PR with above suggested changes: Migrate from gradle-build-action + wrapper-validation-action to gradle/action/setup-gradle #1411