Revert "Merge pull request #411 from indirect/dependabot/bundler/bett…

…er_html-2.1.1"

Try reverting the upgrade to see if that fixes the weird memory leak
type thing that appears to be happening.

This reverts commit d2e00eb, reversing
changes made to c9878c8.

Gemfile.lock

@@ -100,7 +100,7 @@ GEM
       activesupport
     ast (2.4.2)
     base64 (0.2.0)
-    better_html (2.1.1)
+    better_html (2.1.0)
       actionview (>= 6.0)
       activesupport (>= 6.0)
       ast (~> 2.0)