Skip test_11g and test_11g_ojdbc11 workflows for draft pull requests

Draft PRs only need lightweight CI (linting, rubocop, test).
The heavier Oracle 11g test workflows now skip draft PRs and
run when the PR is marked ready for review.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: yahonda

.github/workflows/test_11g.yml

@@ -8,6 +8,7 @@ on:
 
 jobs:
   build:
+    if: github.event_name != 'pull_request' || !github.event.pull_request.draft
 
     runs-on: ubuntu-latest
     strategy:

.github/workflows/test_11g_ojdbc11.yml

@@ -8,6 +8,7 @@ on:
 
 jobs:
   build:
+    if: github.event_name != 'pull_request' || !github.event.pull_request.draft
 
     runs-on: ubuntu-latest
     strategy: