[external-dns-management]

🐛 Bug Fixes

• [OPERATOR] fix premature deletion of DNSEntry if deletion fails in provider (#165, @MartinWeindel)

🏃 Others

• [OPERATOR] The revisionHistoryLimit of the dns-controller-manager Deployment was increased. (#168, @MartinWeindel)
• [OPERATOR] log if zone cache is dropped (#166, @MartinWeindel)
• [OPERATOR] Google CloudDNS: use project id as prefix of zone id (#163, @MartinWeindel)