Bump webmock from 3.12.0 to 3.12.1 in /gemfiles/sinatra-edge

Bumps [webmock](https://github.com/bblimke/webmock) from 3.12.0 to 3.12.1.
- [Release notes](https://github.com/bblimke/webmock/releases)
- [Changelog](https://github.com/bblimke/webmock/blob/master/CHANGELOG.md)
- [Commits](bblimke/webmock@v3.12.0...v3.12.1)

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

gemfiles/sinatra-edge/Gemfile.lock

@@ -125,7 +125,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.10.0)
     rspec-support (3.10.2)
-    rubocop (1.10.0)
+    rubocop (1.11.0)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
       rainbow (>= 2.2.2, < 4.0)
@@ -149,7 +149,7 @@ GEM
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.0.0)
-    webmock (3.12.0)
+    webmock (3.12.1)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
@@ -178,7 +178,7 @@ DEPENDENCIES
   rexml
   rspec (~> 3.7)
   rspec-collection_matchers (~> 1.1)
-  rubocop (~> 1.10.0)
+  rubocop (~> 1.11.0)
   sequel (> 0)
   sidekiq (> 0)
   sinatra!