Bump net-imap from 0.4.16 to 0.4.19

Bumps [net-imap](https://github.com/ruby/net-imap) from 0.4.16 to 0.4.19.
- [Release notes](https://github.com/ruby/net-imap/releases)
- [Commits](ruby/net-imap@v0.4.16...v0.4.19)

---
updated-dependencies:
- dependency-name: net-imap
  dependency-type: indirect
...

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

Gemfile.lock

@@ -128,7 +128,7 @@ GEM
     database_cleaner-mongoid (2.0.1)
       database_cleaner-core (~> 2.0.0)
       mongoid
-    date (3.3.4)
+    date (3.4.1)
     docile (1.4.0)
     domain_name (0.6.20240107)
     drb (2.2.1)
@@ -291,7 +291,7 @@ GEM
     mutex_m (0.2.0)
     net-http (0.4.1)
       uri
-    net-imap (0.4.16)
+    net-imap (0.4.19)
       date
       net-protocol
     net-pop (0.1.2)
@@ -695,7 +695,7 @@ GEM
     stringio (3.1.1)
     thor (1.3.2)
     tilt (2.0.11)
-    timeout (0.4.1)
+    timeout (0.4.3)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     uglifier (4.2.1)