Fix CRD validation for Process Group ID and allow wildcard

[johscheuer]

Description

Fixes: #1777

Type of change

Please select one of the options below.

• Bug fix (non-breaking change which fixes an issue)

Discussion

Testing

I added an e2e test and ran it manually. We have to add a better test, as the FDB cluster will be broken after the test.

Documentation

Follow-up

[foundationdb-ci]

Result of fdb-kubernetes-operator-pr on Linux CentOS 7

• Commit ID: 7f39265
• Duration 2:26:32
• Result: ❌ FAILED
• Error: Error while executing command: if $fail_test; then exit 1; fi. Reason: exit status 1
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