GEODE-10551: Update GitHub Actions workflows to trigger on support/2.0 branch (#7981)

Configure GitHub Actions workflow files to run on support/2.0 branch instead
of develop branch. This enables automated CI/CD checks for pull requests
targeting support/2.0.

Changes:
- Update .github/workflows/codeql.yml to trigger on support/2.0 branch
- Update .github/workflows/gradle.yml to trigger on support/2.0 branch

Author: JinwooHwang

.github/workflows/codeql.yml

@@ -30,10 +30,10 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ develop ]
+    branches: [ support/2.0 ]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ develop ]
+    branches: [ support/2.0 ]
   schedule:
   - cron: '22 22 * * 2'
 

.github/workflows/gradle.yml

@@ -19,9 +19,9 @@ name: develop
 
 on:
   push:
-    branches: [ "develop" ]
+    branches: [ "support/2.0" ]
   pull_request:
-    branches: [ "develop" ]
+    branches: [ "support/2.0" ]
 
 permissions:
   contents: read