Bump rexml from 3.2.5 to 3.3.3

Bumps [rexml](https://github.com/ruby/rexml) from 3.2.5 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@v3.2.5...v3.3.3)

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

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

Gemfile.lock

@@ -61,7 +61,8 @@ GEM
     regexp_parser (2.8.1)
     reline (0.4.2)
       io-console (~> 0.5)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rubocop (1.53.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
@@ -80,6 +81,7 @@ GEM
     stringio (3.1.0)
     strong_migrations (1.4.3)
       activerecord (>= 5.2)
+    strscan (3.1.0)
     timeout (0.4.1)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)