Drop Rails 6.1

.github/workflows/ci.yaml

@@ -15,7 +15,6 @@ jobs:
         - '3.0'
         - '3.1'
         rails-version:
-        - '6.1'
         - '7.0'
     services:
       postgres:

Gemfile

@@ -16,9 +16,7 @@ require File.join(Bundler::Plugin.index.load_paths("bundler-inject")[0], "bundle
 minimum_version =
   case ENV.fetch('TEST_RAILS_VERSION', nil)
   when "7.0"
-    "~>7.0.8"
-  else
     # Default local bundling to use this version for generating migrations
-    "~>6.1.4"
+    "~>7.0.8"
   end
 gem "rails", minimum_version