build(deps): bump golang from 685a22e to c6447e1 (#1497)

Bumps golang from `685a22e` to `c6447e1`.

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

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

Dockerfile

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.20.4@sha256:685a22e459f9516f27d975c5cc6accc11223ee81fdfbbae60e39cc3b87357306 AS builder
+FROM golang:1.20.4@sha256:c6447e16fb7bada7698fb395ab3c7df19896f1824fe72165441b3756d3576856 AS builder
 ENV APP_ROOT=/opt/app-root
 ENV GOPATH=$APP_ROOT
 
@@ -31,7 +31,7 @@ RUN CGO_ENABLED=0 go build -gcflags "all=-N -l" -ldflags "${SERVER_LDFLAGS}" -o
 RUN go test -c -ldflags "${SERVER_LDFLAGS}" -cover -covermode=count -coverpkg=./... -o rekor-server_test ./cmd/rekor-server
 
 # Multi-Stage production build
-FROM golang:1.20.4@sha256:685a22e459f9516f27d975c5cc6accc11223ee81fdfbbae60e39cc3b87357306 as deploy
+FROM golang:1.20.4@sha256:c6447e16fb7bada7698fb395ab3c7df19896f1824fe72165441b3756d3576856 as deploy
 
 # Retrieve the binary from the previous stage
 COPY --from=builder /opt/app-root/src/rekor-server /usr/local/bin/rekor-server