chore(deps): bump alpine from 3.19.1 to 3.20.0

Bumps alpine from 3.19.1 to 3.20.0.

---
updated-dependencies:
- dependency-name: alpine
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.19.1
+FROM alpine:3.20.0
 
 CMD [ "/usr/bin/svnserve", "--daemon", "--foreground", "--root", "/var/opt/svn" ]
 EXPOSE 3690