add 64-bit integer LAPACK deployment

Author: perazz

.github/workflows/fpm-deployment.yml

@@ -38,6 +38,9 @@ jobs:
       - run: | # Just for deployment: create stdlib-fpm folder
           python config/fypp_deployment.py --deploy_stdlib_fpm
 
+      - run: | # Just for deployment: create stdlib-fpm-ilp64 folder
+          python config/fypp_deployment.py --deploy_stdlib_fpm --with_ilp64
+
       - run: | # Use fpm gnu ci to check xdp and qp 
           python config/fypp_deployment.py --with_xdp --with_qp
           fpm test --profile release --flag '-DWITH_XDP -DWITH_QP'
@@ -48,4 +51,12 @@ jobs:
         if: github.event_name != 'pull_request'
         with:
           BRANCH: stdlib-fpm
-          FOLDER: stdlib-fpm
+          FOLDER: stdlib-fpm
+
+    # Update and deploy the f90 files generated by github-ci to the `stdlib-fpm-ilp64` branch.
+      - name: Deploy with 64-bit integer support 🚀
+        uses: JamesIves/github-pages-deploy-action@4.1.5
+        if: github.event_name != 'pull_request'
+        with:
+          BRANCH: stdlib-fpm-ilp64
+          FOLDER: stdlib-fpm-ilp64