pin 2.x html-pipeline asset that thredded depends on

Author: drusepth

Gemfile

@@ -82,6 +82,7 @@ gem "sentry-rails"
 #gem 'levenshtein-ffi'
 
 # Forum
+gem "html-pipeline", "~> 2.14"   # keep the pre-3.x API that Thredded expects
 gem 'thredded', git: 'https://github.com/indentlabs/thredded.git', branch: 'feature/report-posts'
 # gem 'thredded', path: "../thredded"
 

Gemfile.lock

@@ -1375,9 +1375,9 @@ GEM
       activerecord (>= 4.0.0)
     globalid (1.1.0)
       activesupport (>= 5.0)
-    html-pipeline (3.2.2)
-      selma (~> 0.4)
-      zeitwerk (~> 2.5)
+    html-pipeline (2.14.3)
+      activesupport (>= 2)
+      nokogiri (>= 1.4)
     htmlentities (4.3.4)
     http (4.4.1)
       addressable (~> 2.3)
@@ -1568,12 +1568,9 @@ GEM
       rake (>= 12.2)
       thor (~> 1.0)
     rake (13.2.1)
-    rake-compiler-dock (1.9.1)
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rb_sys (0.9.111)
-      rake-compiler-dock (= 1.9.1)
     react-rails (2.6.2)
       babel-transpiler (>= 0.7.0)
       connection_pool
@@ -1618,9 +1615,6 @@ GEM
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
-    selma (0.4.12)
-      rb_sys (~> 0.9)
-    selma (0.4.12-x86_64-linux)
     semantic_range (3.0.0)
     sentry-rails (5.23.0)
       railties (>= 5.0)
@@ -1736,6 +1730,7 @@ DEPENDENCIES
   filesize
   flamegraph
   font-awesome-rails
+  html-pipeline (~> 2.14)
   htmlentities
   ibm_watson
   image_processing