Update for Rails 7.2 to be tested against

Author: enebo

.github/workflows/ruby.yml

@@ -27,7 +27,7 @@ jobs:
         ruby-version: ['jruby-head']
         db: ['mysql2']
         test_targets: ["rails:test_mysql2"]
-        ar_version: ["7-1-stable"]
+        ar_version: ["7-2-stable"]
         prepared_statements: ['false', 'true']
         driver: ['MySQL']
 
@@ -79,7 +79,7 @@ jobs:
         ruby-version: [ 'jruby-head' ]
         db: [ 'postgresql' ]
         test_targets: [ "rails:test_postgresql" ]
-        ar_version: ["7-1-stable"]
+        ar_version: ["7-2-stable"]
         prepared_statements: [ 'false', 'true' ]
 
     services:
@@ -129,7 +129,7 @@ jobs:
         ruby-version: ['jruby-head']
         db: ['sqlite3']
         test_targets: ["rails:test_sqlite3"]
-        ar_version: ["7-1-stable"]
+        ar_version: ["7-2-stable"]
 
     env:
       DB: ${{ matrix.db }}