Update actions/upload-artifact to @v4 (AcademySoftwareFoundation#1969)

This requires all artifacts to have unique names, so the
install_manifest.txt files need to uploaded with the name that
includes the os and build number.

Signed-off-by: Cary Phillips <cary@ilm.com>

Author: cary-ilm

.github/workflows/ci_steps.yml

@@ -156,7 +156,7 @@ jobs:
         # Upload the manifest to make it possible to download for inspection and debugging
         uses: actions/upload-artifact@v4
         with:
-          name: install_manifest
+          name: ${{ env.INSTALL_MANIFEST }}
           path: _build/${{ env.INSTALL_MANIFEST }}
 
       - name: Validate install