Update bundle and re-add net-* gems for Ruby 3.1 compatibility

Gemfile

@@ -22,6 +22,9 @@ gem 'js-routes'
 gem 'kramdown'
 gem 'mimemagic'
 gem 'net-http-persistent'
+gem 'net-imap', require: false
+gem 'net-pop', require: false
+gem 'net-smtp', require: false
 gem 'nokogiri'
 gem 'pagedown-bootstrap-rails'
 gem 'pg'

Gemfile.lock

@@ -135,6 +135,7 @@ GEM
     database_cleaner-core (2.0.1)
     debug_inspector (1.1.0)
     diff-lcs (1.5.0)
+    digest (3.1.0)
     docile (1.4.0)
     docker-api (2.2.0)
       excon (>= 0.47.0)
@@ -253,6 +254,20 @@ GEM
     nested_form (0.3.2)
     net-http-persistent (4.0.1)
       connection_pool (~> 2.2)
+    net-imap (0.2.3)
+      digest
+      net-protocol
+      strscan
+    net-pop (0.1.1)
+      digest
+      net-protocol
+      timeout
+    net-protocol (0.1.3)
+      timeout
+    net-smtp (0.3.1)
+      digest
+      net-protocol
+      timeout
     netrc (0.11.0)
     nio4r (2.5.8)
     nokogiri (1.13.6)
@@ -298,8 +313,8 @@ GEM
       rack (>= 1.1)
     rack-proxy (0.7.2)
       rack
-    rack-test (1.1.0)
-      rack (>= 1.0, < 3)
+    rack-test (2.0.2)
+      rack (>= 1.3)
     rails (6.1.6)
       actioncable (= 6.1.6)
       actionmailbox (= 6.1.6)
@@ -391,7 +406,8 @@ GEM
       rspec-mocks (~> 3.10)
       rspec-support (~> 3.10)
     rspec-support (3.11.0)
-    rubocop (1.30.1)
+    rubocop (1.31.1)
+      json (~> 2.3)
       parallel (~> 1.10)
       parser (>= 3.1.0.0)
       rainbow (>= 2.2.2, < 4.0)
@@ -466,7 +482,7 @@ GEM
       rbtree
       set (~> 1.0)
     spring (4.0.0)
-    sprockets (4.0.3)
+    sprockets (4.1.1)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.4.2)
@@ -474,11 +490,13 @@ GEM
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
     ssrf_filter (1.0.7)
+    strscan (3.0.3)
     telegraf (2.1.0)
       influxdb
     temple (0.8.2)
     thor (1.2.1)
     tilt (2.0.10)
+    timeout (0.3.0)
     tubesock (0.2.9)
       rack (>= 1.5.0)
       websocket (>= 1.1.0)
@@ -552,6 +570,9 @@ DEPENDENCIES
   mimemagic
   mnemosyne-ruby
   net-http-persistent
+  net-imap
+  net-pop
+  net-smtp
   nokogiri
   nyan-cat-formatter
   pagedown-bootstrap-rails
@@ -597,4 +618,4 @@ DEPENDENCIES
   whenever
 
 BUNDLED WITH
-   2.3.15
+   2.3.17