Minor: Include shasums in GHA workflow artifacts

This may be helpful in case SHA comparison is needed w/ files elsewhere.
For example, the files uploaded to a github release page.

Signed-off-by: Chris Evich <cevich@redhat.com>

.github/workflows/mac-pkg.yml

@@ -139,6 +139,7 @@ jobs:
         name: installers
         path: |
           contrib/pkginstaller/out/podman-installer-macos-*.pkg
+          contrib/pkginstaller/out/shasums
     - name: Upload to Release
       if: >-
         steps.actual_dryrun.outputs.dryrun == 'false' &&

.github/workflows/upload-win-installer.yml

@@ -118,7 +118,9 @@ jobs:
       uses: actions/upload-artifact@v3
       with:
         name: installer
-        path: ${{ steps.check.outputs.upload_asset_name }}
+        path: |
+          ${{ steps.check.outputs.upload_asset_name }}
+          .\contrib\win-installer\shasums
     - name: Upload
       if: >-
         steps.actual_dryrun.outputs.dryrun == 'false' &&