CI: Fix Windows Patches action release notes generation

By not specifying a checkout ref, actions/checkout does a second
checkout when this action is invoked by the Publish workflow (release
event). When this happens, it checks out the commit object from the tag,
and git can no longer locate the annotated tag that contains the release
notes. This then causes the release notes to be just the commit message
and not the annotated tag message.

The sparkle-appcast action in general and this actioo when invoked via
the Dispatch workflow do not have this issue, and they both specify the
tag as the ref.

.github/actions/windows-patches/action.yaml

@@ -25,6 +25,7 @@ runs:
       with:
         path: "repo"
         fetch-depth: 0
+        ref: ${{ inputs.tagName }}
 
     - name: Download Release Artifact
       shell: pwsh