Bump ubuntu from 20.04 to 22.04 in /9

Bumps ubuntu from 20.04 to 22.04.

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

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

9/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 
 LABEL org.opencontainers.image.source="https://github.com/cpp-linter/clang-tools-docker"
 LABEL org.opencontainers.image.description="The Clang Tools Docker image includes the clang-format and clang-tidy."