Update module github.com/gardener/gardener to v1.144.2

Author: gardener-ci-robot

go.mod

@@ -5,7 +5,7 @@ go 1.26.0
 require (
 	github.com/Masterminds/semver/v3 v3.5.0
 	github.com/ahmetb/gen-crd-api-reference-docs v0.3.0
-	github.com/gardener/gardener v1.138.0
+	github.com/gardener/gardener v1.144.2
 	github.com/gardener/gardener/pkg/apis v1.138.0
 	github.com/go-logr/logr v1.4.3
 	github.com/golang-jwt/jwt/v5 v5.3.1