Bump mechanize from 2.7.6 to 2.7.7

Bumps [mechanize](https://github.com/sparklemotion/mechanize) from 2.7.6 to 2.7.7.
- [Release notes](https://github.com/sparklemotion/mechanize/releases)
- [Changelog](https://github.com/sparklemotion/mechanize/blob/master/CHANGELOG.rdoc)
- [Commits](sparklemotion/mechanize@v2.7.6...v2.7.7)

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

Author: dependabot[bot]

Gemfile.lock

@@ -27,12 +27,12 @@ GEM
     cliver (0.3.2)
     coderay (1.1.3)
     concurrent-ruby (1.1.6)
-    connection_pool (2.2.3)
+    connection_pool (2.2.5)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
     dotenv (2.7.5)
     headless (2.3.1)
-    http-cookie (1.0.3)
+    http-cookie (1.0.4)
       domain_name (~> 0.5)
     i18n (1.8.3)
       concurrent-ruby (~> 1.0)
@@ -51,25 +51,26 @@ GEM
       selenium-webdriver
       thor
       whenever
-    mechanize (2.7.6)
+    mechanize (2.7.7)
       domain_name (~> 0.5, >= 0.5.1)
       http-cookie (~> 1.0)
       mime-types (>= 1.17.2)
       net-http-digest_auth (~> 1.1, >= 1.1.1)
       net-http-persistent (>= 2.5.2)
       nokogiri (~> 1.6)
       ntlm-http (~> 0.1, >= 0.1.1)
+      webrick (~> 1.7)
       webrobots (>= 0.0.9, < 0.2)
     method_source (1.0.0)
     mime-types (3.3.1)
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2020.0512)
+    mime-types-data (3.2021.0901)
     mini_mime (1.0.2)
     mini_portile2 (2.6.1)
     minitest (5.14.1)
     murmurhash3 (0.1.6)
     net-http-digest_auth (1.4.1)
-    net-http-persistent (4.0.0)
+    net-http-persistent (4.0.1)
       connection_pool (~> 2.2)
     nokogiri (1.12.5)
       mini_portile2 (~> 2.6.1)
@@ -104,7 +105,8 @@ GEM
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext
-    unf_ext (0.0.7.7)
+    unf_ext (0.0.8)
+    webrick (1.7.0)
     webrobots (0.1.2)
     websocket-driver (0.7.2)
       websocket-extensions (>= 0.1.0)