Build(deps): Update rexml requirement from ~> 3.2.9 to >= 3.2.9, < 3.4.0

Updates the requirements on [rexml](https://github.com/ruby/rexml) to permit the latest version.
- [Release notes](https://github.com/ruby/rexml/releases)
- [Changelog](https://github.com/ruby/rexml/blob/master/NEWS.md)
- [Commits](ruby/rexml@v3.2.9...v3.3.1)

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

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

Gemfile.lock

@@ -6,7 +6,7 @@ PATH
       erb (~> 4.0.3)
       json_pure (>= 2.6.3, < 2.8.0)
       open4 (~> 1.3.4)
-      rexml (~> 3.2.9)
+      rexml (>= 3.2.9, < 3.4.0)
       rubyzip (~> 2.3.2)
       text (~> 1.3.1)
 
@@ -67,7 +67,7 @@ GEM
     rainbow (3.1.1)
     rake (13.2.1)
     regexp_parser (2.9.2)
-    rexml (3.2.9)
+    rexml (3.3.1)
       strscan
     rspec (3.13.0)
       rspec-core (~> 3.13.0)

tetra.gemspec

@@ -36,7 +36,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency "erb", "~> 4.0.3"
   s.add_runtime_dependency "json_pure", ">= 2.6.3", "< 2.8.0"
   s.add_runtime_dependency "open4", "~> 1.3.4"
-  s.add_runtime_dependency "rexml", "~> 3.2.9"
+  s.add_runtime_dependency "rexml", ">= 3.2.9", "< 3.4.0"
   s.add_runtime_dependency "rubyzip", "~> 2.3.2"
   s.add_runtime_dependency "text", "~> 1.3.1"
 end