Bump net-imap from 0.3.4 to 0.3.8

Bumps [net-imap](https://github.com/ruby/net-imap) from 0.3.4 to 0.3.8.
- [Release notes](https://github.com/ruby/net-imap/releases)
- [Commits](ruby/net-imap@v0.3.4...v0.3.8)

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

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

Gemfile.lock

@@ -125,7 +125,7 @@ GEM
     crass (1.0.6)
     dalli (3.2.5)
     database_cleaner (1.99.0)
-    date (3.3.3)
+    date (3.4.1)
     deep_cloneable (3.2.0)
       activerecord (>= 3.1.0, < 8)
     deprecate (0.0.0)
@@ -287,12 +287,12 @@ GEM
     nenv (0.3.0)
     net-http-persistent (4.0.1)
       connection_pool (~> 2.2)
-    net-imap (0.3.4)
+    net-imap (0.3.8)
       date
       net-protocol
     net-pop (0.1.2)
       net-protocol
-    net-protocol (0.2.1)
+    net-protocol (0.2.2)
       timeout
     net-smtp (0.3.3)
       net-protocol
@@ -493,7 +493,7 @@ GEM
       colorize (>= 0.8.1)
       rest-client (>= 2.0.2)
     thor (1.3.0)
-    timeout (0.3.2)
+    timeout (0.4.3)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unf (0.1.4)