Merge pull request #961 from davidsiaw/dependabot/bundler/net-imap-0.5.7

Author: dependabot[bot]

Gemfile.lock

@@ -345,7 +345,7 @@ GEM
     nap (1.1.0)
     net-http (0.4.1)
       uri
-    net-imap (0.5.6)
+    net-imap (0.5.7)
       date
       net-protocol
     net-pop (0.1.2)