Bump rexml from 3.2.5 to 3.2.8

Bumps [rexml](https://github.com/ruby/rexml) from 3.2.5 to 3.2.8.
- [Release notes](https://github.com/ruby/rexml/releases)
- [Changelog](https://github.com/ruby/rexml/blob/master/NEWS.md)
- [Commits](ruby/rexml@v3.2.5...v3.2.8)

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

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

Gemfile.lock

@@ -72,8 +72,10 @@ GEM
     nap (1.1.0)
     netrc (0.11.0)
     public_suffix (4.0.7)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     ruby-macho (2.5.1)
+    strscan (3.1.0)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
     tzinfo (2.0.6)
@@ -91,7 +93,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  activesupport (>= 6.1.7.3)
+  activesupport (>= 6.1.7.3, < 7.1.0)
   cocoapods (~> 1.12)
 
 RUBY VERSION