Build(deps): Bump regexp_parser from 2.2.1 to 2.10.0

Bumps [regexp_parser](https://github.com/ammar/regexp_parser) from 2.2.1 to 2.10.0.
- [Changelog](https://github.com/ammar/regexp_parser/blob/master/CHANGELOG.md)
- [Commits](ammar/regexp_parser@v2.2.1...v2.10.0)

---
updated-dependencies:
- dependency-name: regexp_parser
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -106,6 +106,7 @@ GEM
     debug_inspector (1.1.0)
     diff-lcs (1.5.0)
     diffy (3.4.0)
+    digest (3.0.0)
     discourse-ember-rails (0.18.6)
       active_model_serializers
       ember-data-source (>= 1.0.0.beta.5)
@@ -246,6 +247,18 @@ GEM
     multi_xml (0.6.0)
     multipart-post (2.1.1)
     mustache (1.1.1)
+    net-imap (0.2.4)
+      digest
+      net-protocol
+      strscan
+    net-pop (0.1.2)
+      net-protocol
+    net-protocol (0.2.2)
+      timeout
+    net-smtp (0.2.2)
+      digest
+      net-protocol
+      timeout
     nio4r (2.5.8)
     nokogiri (1.13.3)
       mini_portile2 (~> 2.8.0)
@@ -352,7 +365,7 @@ GEM
     redis (4.5.1)
     redis-namespace (1.8.2)
       redis (>= 3.0.4)
-    regexp_parser (2.2.1)
+    regexp_parser (2.10.0)
     request_store (1.5.1)
       rack (>= 1.4)
     rexml (3.2.5)
@@ -452,9 +465,11 @@ GEM
       sprockets (>= 3.0.0)
     sshkey (2.0.0)
     stackprof (0.2.19)
+    strscan (3.1.2)
     test-prof (1.0.7)
     thor (1.2.1)
     tilt (2.0.10)
+    timeout (0.4.3)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
     uglifier (4.2.0)
@@ -514,6 +529,7 @@ DEPENDENCIES
   cppjieba_rb
   css_parser
   diffy
+  digest (= 3.0.0)
   discourse-ember-rails (= 0.18.6)
   discourse-ember-source (~> 3.12.2)
   discourse-fonts
@@ -556,6 +572,9 @@ DEPENDENCIES
   mocha
   multi_json
   mustache
+  net-imap (~> 0.2.1)
+  net-pop (~> 0.1.1)
+  net-smtp (~> 0.2.1)
   nokogiri
   oj
   omniauth