action: bump ruby from 3.3.0 to 3.3.3

Bumps ruby from 3.3.0 to 3.3.3.

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

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM ruby:3.3.0
+FROM ruby:3.3.3
 
 # Set the default locale so as to not cause issues in Jekyll
 ENV LC_ALL C.UTF-8