Bump golang in /vertical-pod-autoscaler/pkg/updater

Bumps golang from 1.25.3 to 1.25.4.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.25.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

vertical-pod-autoscaler/pkg/updater/Dockerfile

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM --platform=$BUILDPLATFORM golang:1.25.3 AS builder
+FROM --platform=$BUILDPLATFORM golang:1.25.4 AS builder
 
 WORKDIR /workspace