Bump golang from 1a9d253 to 672a228

Bumps golang from `1a9d253` to `672a228`.

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

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

Dockerfile

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.21.5@sha256:1a9d253b11048b1c76b690b0c09d78d200652e4e913d5d1dcc8eb8d0d932bfe4 AS builder
+FROM golang:1.21.5@sha256:672a2286da3ee7a854c3e0a56e0838918d0dbb1c18652992930293312de898a6 AS builder
 ENV APP_ROOT=/opt/app-root
 ENV GOPATH=$APP_ROOT
 
@@ -29,7 +29,7 @@ RUN go build -ldflags "${SERVER_LDFLAGS}" ./cmd/timestamp-server
 RUN CGO_ENABLED=0 go build -gcflags "all=-N -l" -ldflags "${SERVER_LDFLAGS}" -o timestamp-server_debug ./cmd/timestamp-server
 
 # Multi-Stage production build
-FROM golang:1.21.5@sha256:1a9d253b11048b1c76b690b0c09d78d200652e4e913d5d1dcc8eb8d0d932bfe4 as deploy
+FROM golang:1.21.5@sha256:672a2286da3ee7a854c3e0a56e0838918d0dbb1c18652992930293312de898a6 as deploy
 
 # Retrieve the binary from the previous stage
 COPY --from=builder /opt/app-root/src/timestamp-server /usr/local/bin/timestamp-server