[external-dns-management]

🏃 Others

• [OPERATOR] The Helm chart is now adapted such that it works well in garden cluster with enabled NetworkPolicy protection (default since gardener/gardener@v1.71 when garden cluster is managed by gardener-operator). (gardener/external-dns-management#306, @rfranzke)
• [OPERATOR] Bump builder image from golang:1.20.4 to golang:1.20.5 (gardener/external-dns-management#308, @MartinWeindel)