Revert "Run CI on fork"

This reverts commit 1c7828f.

Author: marcusdacoregio

.github/workflows/continuous-integration-workflow.yml

@@ -26,7 +26,7 @@ jobs:
   prerequisites:
     name: Pre-requisites for building
     runs-on: ubuntu-latest
-#    if: ${{ github.repository == 'spring-projects/spring-security' }}
+    if: ${{ github.repository == 'spring-projects/spring-security' }}
     outputs:
       runjobs: ${{ steps.continue.outputs.runjobs }}
       project_version: ${{ steps.continue.outputs.project_version }}