Use NUSHELL_PAT for winget publish (#15934)

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Use NUSHELL_PAT for winget publish

.github/workflows/winget-submission.yml

@@ -30,5 +30,5 @@ jobs:
           installers-regex: 'msvc\.msi$'
           version: ${{ inputs.tag_name || github.event.release.tag_name }}
           release-tag: ${{ inputs.tag_name || github.event.release.tag_name }}
-          token: ${{ secrets.GITHUB_TOKEN }}
+          token: ${{ secrets.NUSHELL_PAT }}
           fork-user: nushell