fix: UAT4 Testing Feedback

[rutalreja-deloitte]

Fixes:

• Troubleshooting commands for CloudSQL Read Replica Failure
• Update readmes
• 3-Networks Ingress FW Rule on port 8676 for acm
• 4-projects change boa-gsa SA role to SQL Admin
• 4-projects create new custom SA for GKE Nodes with artifact registry reader on cicd prj
• 5-infra add new var for taking in above SA and propagate into base-env module gke cluster creation
• 5-infra reduce read replicas to 4 (2 each per instance) [Does not fix issue #37 one read replica still fails inconsistently]
• Add missing instruction rm -rf .git folder in 7-app-build readme (bug)
• Addressed #32 #33 #34 completely can be closed
• 7-app-build cloudbuild.yaml cleanup first pass
• 5-infra logging module upgraded pinned version to v6.0 (tested)
• 5-infra logging sink force_destroy=true to support terraform destroy
• 5-infra KMS SA creation deleted
• 5-infra KMS Keyring and Key names random suffix
• 4-projects Custom TF SA added permission Project IAM Admin on cicd prj so Bastion SA permission can be added (Bug)

[rutalreja-deloitte]

Need guidance on issue #37 read replica problem is not fixed even with fewer replicas, can revert the change in this PR from 3 replicas to 2 replicas per instance according to review. Though UAT Feedback was 3 replicas may be overkill in general