Bump rexml from 3.2.5 to 3.3.0

Bumps [rexml](https://github.com/ruby/rexml) from 3.2.5 to 3.3.0.
- [Release notes](https://github.com/ruby/rexml/releases)
- [Changelog](https://github.com/ruby/rexml/blob/master/NEWS.md)
- [Commits](https://github.com/ruby/rexml/compare/v3.2.5...v3.3.0)

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

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

Gemfile.lock

@@ -21,7 +21,8 @@ GEM
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.8.1)
-    rexml (3.2.5)
+    rexml (3.3.0)
+      strscan
     rubocop (1.52.1)
       json (~> 2.3)
       parallel (~> 1.10)
@@ -50,6 +51,7 @@ GEM
     standard-performance (1.1.2)
       lint_roller (~> 1.1)
       rubocop-performance (~> 1.18.0)
+    strscan (3.1.0)
     unicode-display_width (2.4.2)
     waitutil (0.2.1)
     websocket-driver (0.7.6)