Bump rexml from 3.3.2 to 3.3.3 in /components/s3_mpeg

Bumps [rexml](https://github.com/ruby/rexml) from 3.3.2 to 3.3.3.
- [Release notes](https://github.com/ruby/rexml/releases)
- [Changelog](https://github.com/ruby/rexml/blob/master/NEWS.md)
- [Commits](ruby/rexml@v3.3.2...v3.3.3)

---
updated-dependencies:
- dependency-name: rexml
  dependency-type: indirect
...

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

components/s3_mpeg/Gemfile.lock

@@ -21,7 +21,7 @@ GEM
     docile (1.4.0)
     jmespath (1.6.2)
     ox (2.14.18)
-    rexml (3.3.2)
+    rexml (3.3.3)
       strscan
     rspec (3.13.0)
       rspec-core (~> 3.13.0)