Bump twilio-ruby from 6.8.0 to 6.8.1

Bumps [twilio-ruby](https://github.com/twilio/twilio-ruby) from 6.8.0 to 6.8.1.
- [Release notes](https://github.com/twilio/twilio-ruby/releases)
- [Changelog](https://github.com/twilio/twilio-ruby/blob/main/CHANGES.md)
- [Commits](twilio/twilio-ruby@6.8.0...6.8.1)

---
updated-dependencies:
- dependency-name: twilio-ruby
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -391,7 +391,7 @@ GEM
     puma (6.4.0)
       nio4r (~> 2.0)
     pumi (0.21.0)
-    racc (1.7.1)
+    racc (1.7.3)
     rack (2.2.8)
     rack-session (1.0.1)
       rack (< 3)
@@ -563,7 +563,7 @@ GEM
       actionpack (>= 6.0.0)
       activejob (>= 6.0.0)
       railties (>= 6.0.0)
-    twilio-ruby (6.8.0)
+    twilio-ruby (6.8.1)
       faraday (>= 0.9, < 3.0)
       jwt (>= 1.5, < 3.0)
       nokogiri (>= 1.6, < 2.0)