Bump github.com/gardener/gardener from 1.76.2 to 1.78.0 (#207)

Bumps [github.com/gardener/gardener](https://github.com/gardener/gardener) from 1.76.2 to 1.78.0.
- [Release notes](https://github.com/gardener/gardener/releases)
- [Commits](gardener/gardener@v1.76.2...v1.78.0)

---
updated-dependencies:
- dependency-name: github.com/gardener/gardener
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -5,7 +5,7 @@ go 1.20
 require (
 	github.com/Masterminds/sprig v2.22.0+incompatible
 	github.com/coreos/butane v0.18.0
-	github.com/gardener/gardener v1.76.2
+	github.com/gardener/gardener v1.78.0
 	github.com/gardener/machine-controller-manager v0.49.3
 	github.com/imdario/mergo v0.3.16
 	github.com/onmetal/controller-utils v0.8.1

go.sum

@@ -51,8 +51,8 @@ github.com/evanphx/json-patch/v5 v5.6.0 h1:b91NhWfaz02IuVxO9faSllyAtNXHMPkC5J8sJ
 github.com/evanphx/json-patch/v5 v5.6.0/go.mod h1:G79N1coSVB93tBe7j6PhzjmR3/2VvlbKOFpnXhI9Bw4=
 github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
 github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
-github.com/gardener/gardener v1.76.2 h1:8TpwiQQonohIHAPGVoXBSqTKqFUMuiH6oE+ahrYRxto=
-github.com/gardener/gardener v1.76.2/go.mod h1:kSr7MNtOVSMHt/zW6C2OVZFhFG58246zBtoRNsvBc0o=
+github.com/gardener/gardener v1.78.0 h1:sV/HUkBMTvg2+9Eo0Mfjua5IF9qmJpFJ/VYS17YkSsk=
+github.com/gardener/gardener v1.78.0/go.mod h1:dGLDPASBlmYB0JUWy3iSWxemgz+iVQmBsf3xP6ETdlY=
 github.com/gardener/machine-controller-manager v0.49.3 h1:/ghxZVMij00SpeaORMZJlodosePWWByrIOr8fcp45sU=
 github.com/gardener/machine-controller-manager v0.49.3/go.mod h1:ypFf18+Y6mJpohfZrOJI+vq7NQ3Yn7Ke4ujW23u/6nM=
 github.com/go-logr/logr v0.1.0/go.mod h1:ixOQHD9gLJUVQQ2ZOR7zLEifBX6tGkNJF4QyIY7sIas=