github-actions: upload release artifacts directly

They will be zipped and that's the format Signpath expects it to be.
But if we upload the already existing unsigned*.zip, it will be
double-zipped, which is what Signpath cannot handle.

Signed-off-by: Christian Brabandt <[email protected]>

Author: chrisbra

.github/workflows/windows-arm-build.yml

@@ -100,9 +100,9 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          name: arm64-windows-unsigned-zip-archive.zip
+          name: arm64-windows-unsigned-archive
           path: |
-            unsigned*.zip
+            gvim*arm64.*
 
       - name: Attest Zip File for Signpath
         uses: actions/attest-build-provenance@v2