Move deploy-docs.yml to correct folder

Issue gh-1295

Author: rwinch

docs/.github/workflows/deploy-docs.yml renamed to .github/workflows/deploy-docs.yml

@@ -13,8 +13,7 @@ permissions:
 jobs:
   build:
     runs-on: ubuntu-latest
-    # FIXME enable when pushed to spring-projects
-    # if: github.repository_owner == 'spring-projects'
+    if: github.repository_owner == 'spring-projects'
     steps:
       - name: Checkout
         uses: actions/checkout@v3