Implement code freeze for July 2025 (adoptium#198)

Signed-off-by: Stewart X Addison <sxa@redhat.com>
Co-authored-by: Stewart X Addison <sxa@li-34a686cc-2c3d-11b2-a85c-abaa556d87ad.ibm.com>

Author: sxa

.github/workflows/code-freeze.yml

@@ -18,7 +18,7 @@ jobs:
   freeze:
     runs-on: ubuntu-latest
     # Change to false when code freeze is not in place
-    if: github.repository_owner == 'adoptium' && false 
+    if: github.repository_owner == 'adoptium' && true
     steps:
       - name: Check for blocking review
         if: github.event_name == 'pull_request_target' || (github.event_name == 'issue_comment' && github.event.issue.pull_request)