[github.com/gardener/gardenctl-v2:v2.15.0] ✨ New Features

• [OPERATOR] gardenctl now supports requesting a read-only viewer kubeconfig instead of admin via the --access-level flag (admin / viewer / auto) and the per-garden kubeconfigAccessLevelDefaults.{shoots,managedSeeds} config block (also editable via gardenctl config set-garden). by @jamand [#735]
• [OPERATOR] gardenctl provider-env and gardenctl ssh now support --control-plane for shoot targets backed by a managed seed, operating on the seed infrastructure instead of the workload shoot. A new gpc alias is provided as a shortcut for provider-env --control-plane. by @petersutter [#760] 🐛 Bug Fixes
• [USER] The gardenctl ssh command now validates node addresses before use. by @petersutter [#776]