Bump webmock from 3.0.1 to 3.4.2

Bumps [webmock](https://github.com/bblimke/webmock) from 3.0.1 to 3.4.2.
- [Release notes](https://github.com/bblimke/webmock/releases)
- [Changelog](https://github.com/bblimke/webmock/blob/master/CHANGELOG.md)
- [Commits](bblimke/webmock@v3.0.1...v3.4.2)

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

Author: dependabot-support

Gemfile.lock

@@ -13,16 +13,16 @@ GEM
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.5.2)
+      public_suffix (>= 2.0.2, < 4.0)
     coderay (1.1.1)
     concurrent-ruby (1.0.4)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     diff-lcs (1.3)
     faraday (0.10.1)
       multipart-post (>= 1.2, < 3)
-    hashdiff (0.3.4)
+    hashdiff (0.3.7)
     i18n (0.8.0)
     jwt (1.5.6)
     method_source (0.8.2)
@@ -41,7 +41,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    public_suffix (2.0.5)
+    public_suffix (3.0.2)
     rack (2.0.4)
     rack-protection (2.0.1)
       rack
@@ -70,7 +70,7 @@ GEM
     tilt (2.0.8)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
-    webmock (3.0.1)
+    webmock (3.4.2)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff