Implement code freeze for March 2025 release (#194)

Signed-off-by: Sophia Guo <sophia.gwf@gmail.com>

Author: sophia-guo

.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)