improves code structure, adds TTL, record mapping, enhances Helm chart

[bb-Ricardo]

General

• bump go version to 1.22
• use current available images (alpine 3.20) as docker app image

go code

• adds new issuer config options
  • TTL: define TXT record TTL (default: 5 min)
  • record mapping: if cert-manager can't resolve the proper CNAME record the mapping can be dann manually
  • define namespace for InfoBlox credentials if not present in issuer namespace
• refactoring of Code
  • avoid code duplication
  • add debug logging
  • logout after each InfoBlox request
  • don't panic of GROUP_NAME env var is not defined

Helm chart

• possible to use existing service account
• improved RBAC to only apply for infoblox-wapi resources
• adds default secure securityContext
• adds default resource limits
• adds imagePullSecrets
• image tag is by default set to .Chart.AppVersion
• use unprivileged port (8443)
• add debugOutput log option