Bump rexml from 3.2.6 to 3.3.3 in /lib/mayu/commands/init/template (#82)

Bumps [rexml](https://github.com/ruby/rexml) from 3.2.6 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@v3.2.6...v3.3.3)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

lib/mayu/commands/init/template/Gemfile.lock

@@ -45,6 +45,7 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.10)
     localhost (1.1.10)
     mayu-css (0.1.2-arm64-darwin)
+    mayu-css (0.1.2-x86_64-linux)
     mayu-live (0.0.6)
       async (~> 2.8.0)
       async-container (~> 0.16.12)
@@ -100,13 +101,15 @@ GEM
       ffi (~> 1.0)
     rbnacl (7.1.1)
       ffi
-    rexml (3.2.6)
+    rexml (3.3.3)
+      strscan
     rmagick (5.3.0)
       pkg-config (~> 1.4)
     rouge (4.0.1)
     sorbet-runtime (0.5.11188)
     source_map (3.0.1)
       json
+    strscan (3.1.0)
     syntax_tree (5.3.0)
       prettier_print (>= 1.2.0)
     syntax_tree-haml (3.0.0)
@@ -129,6 +132,7 @@ GEM
 
 PLATFORMS
   arm64-darwin
+  x86_64-linux
 
 DEPENDENCIES
   mayu-live