[ruby/rage] Use ActiveRecord 8.0 (#9757)

Also commit Gemfile.lock to git.
Lock files make test runs more deterministic and predictable.

frameworks/Ruby/rage/Gemfile

@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gem "rage-rb", "~> 1.10"
 
 gem "pg", "~> 1.0"
-gem "activerecord", "~> 7.2.0", require: "active_record"
+gem "activerecord", "~> 8.0.0", require: "active_record"
 
 # Build JSON APIs with ease
 # gem "alba"

frameworks/Ruby/rage/Gemfile.lock

@@ -0,0 +1,64 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activemodel (8.0.2)
+      activesupport (= 8.0.2)
+    activerecord (8.0.2)
+      activemodel (= 8.0.2)
+      activesupport (= 8.0.2)
+      timeout (>= 0.4.0)
+    activesupport (8.0.2)
+      base64
+      benchmark (>= 0.3)
+      bigdecimal
+      concurrent-ruby (~> 1.0, >= 1.3.1)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
+      minitest (>= 5.1)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
+      uri (>= 0.13.1)
+    base64 (0.2.0)
+    benchmark (0.4.0)
+    bigdecimal (3.1.9)
+    concurrent-ruby (1.3.5)
+    connection_pool (2.5.0)
+    drb (2.2.1)
+    i18n (1.14.7)
+      concurrent-ruby (~> 1.0)
+    logger (1.7.0)
+    minitest (5.25.5)
+    pg (1.5.9)
+    rack (2.2.10)
+    rack-test (2.2.0)
+      rack (>= 1.3)
+    rage-iodine (4.0.0)
+    rage-rb (1.11.0)
+      rack (~> 2.0)
+      rack-test (~> 2.1)
+      rage-iodine (~> 4.0)
+      rake (>= 12.0)
+      thor (~> 1.0)
+      zeitwerk (~> 2.6)
+    rake (13.2.1)
+    securerandom (0.4.1)
+    thor (1.3.2)
+    timeout (0.4.3)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    uri (1.0.3)
+    zeitwerk (2.7.1)
+
+PLATFORMS
+  ruby
+  x86_64-darwin-23
+
+DEPENDENCIES
+  activerecord (~> 8.0.0)
+  pg (~> 1.0)
+  rage-rb (~> 1.10)
+
+BUNDLED WITH
+   2.6.2