Bump ubuntu in /examples/deployment/kubernetes/mysql/image

Bumps ubuntu from `6042500` to `e6173d4`.

---
updated-dependencies:
- dependency-name: ubuntu
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

examples/deployment/kubernetes/mysql/image/Dockerfile

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM ubuntu:jammy@sha256:6042500cf4b44023ea1894effe7890666b0c5c7871ed83a97c36c76ae560bb9b
+FROM ubuntu:jammy@sha256:e6173d4dc55e76b87c4af8db8821b1feae4146dd47341e4d431118c7dd060a74
 
 # Patch the OS-level packages and remove unneeded dependencies.
 RUN apt-get update \