Update Gradle Wrapper from 8.5 to 8.6

[github-actions]

Update Gradle Wrapper from 8.5 to 8.6.

Read the release notes: https://docs.gradle.org/8.6/release-notes.html

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The checksums of the Wrapper JAR and the distribution binary have been successfully verified.

• Gradle release: 8.6
• Distribution (-bin) zip checksum: 9631d53cf3e74bfa726893aee1f8994fee4e060c401335946dba2156f440f24c
• Wrapper JAR Checksum: d3b261c2820e9e3d8d639ed084900f11f4a86050a8f83342ade7b6bc9b0d2bdd

You can find the reference checksum values at https://gradle.org/release-checksums/

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🤖 This PR has been created by the Update Gradle Wrapper action.

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