Bump net-imap from 0.4.2 to 0.4.4

Bumps [net-imap](https://github.com/ruby/net-imap) from 0.4.2 to 0.4.4.
- [Release notes](https://github.com/ruby/net-imap/releases)
- [Commits](ruby/net-imap@v0.4.2...v0.4.4)

---
updated-dependencies:
- dependency-name: net-imap
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -99,7 +99,7 @@ GEM
       activerecord (>= 5.a)
       database_cleaner-core (~> 2.0.0)
     database_cleaner-core (2.0.1)
-    date (3.3.3)
+    date (3.3.4)
     debug_inspector (1.1.0)
     devise (4.9.2)
       bcrypt (~> 3.0)
@@ -179,12 +179,12 @@ GEM
     minitest (5.20.0)
     multi_xml (0.6.0)
     nenv (0.3.0)
-    net-imap (0.4.2)
+    net-imap (0.4.4)
       date
       net-protocol
     net-pop (0.1.2)
       net-protocol
-    net-protocol (0.2.1)
+    net-protocol (0.2.2)
       timeout
     net-smtp (0.4.0)
       net-protocol
@@ -385,7 +385,7 @@ GEM
     temple (0.10.3)
     thor (1.3.0)
     tilt (2.3.0)
-    timeout (0.4.0)
+    timeout (0.4.1)
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)