Update dependency gradle to v7

1 job for renovate/gradle-7.x in 3 seconds (queued for 42 seconds)
Status Name Job ID Coverage
  Build
failed build #738815

00:00:03

 
Name Stage Failure
failed
build Build
Running with gitlab-runner 14.5.0 (f0a95a76)
on runner for somnonetz hosted on runners.schulz.com.de GJx3RjPs

Resolving secrets
Preparing the "docker" executor
Using Docker executor with image gradle:7.3.1-jdk11 ...
Pulling docker image gradle:7.3.1-jdk11 ...

WARNING: Failed to pull image with policy "always": no matching manifest for linux/amd64 in the manifest list entries (manager.go:203:1s)
ERROR: Job failed: failed to pull image "gradle:7.3.1-jdk11" with specified policies [always]: no matching manifest for linux/amd64 in the manifest list entries (manager.go:203:1s)