CI: skip info on upstream branch for deploy message in nightly since it is already the last beta before stable

.github/workflows/sidestore-deploy.yml

@@ -145,6 +145,20 @@ jobs:
 
           echo "files=$FILES" >> $GITHUB_OUTPUT
 
+      - name: Set Upstream Recommendation
+        id: upstream_recommendation
+        run: |
+          UPSTREAM_NAME=$(echo "${{ inputs.upstream_name }}" | tr '[:upper:]' '[:lower:]')
+          if [[ "$UPSTREAM_NAME" != "nightly" ]]; then
+            echo "content<<EOF" >> $GITHUB_OUTPUT
+            echo "If you want to try out new features early but want a lower chance of bugs, you can look at [SideStore ${{ inputs.upstream_name }}](https://github.com/${{ github.repository }}/releases?q=${{ inputs.upstream_tag }})." >> $GITHUB_OUTPUT
+            echo "" >> $GITHUB_OUTPUT
+            echo "EOF" >> $GITHUB_OUTPUT
+          else
+            echo "content=" >> $GITHUB_OUTPUT
+          fi
+        shell: bash
+
       - name: Upload to releases
         uses: IsaacShelton/update-existing-release@v1.3.1
         with:
@@ -154,20 +168,19 @@ jobs:
           prerelease: ${{ inputs.is_beta }}
           files: ${{ steps.list_uploads.outputs.files }}
           body: |
-              This is an ⚠️ **EXPERIMENTAL** ⚠️ ${{ inputs.release_name }} build for commit [${{ github.sha }}](https://github.com/${{ github.repository }}/commit/${{ github.sha }}).
+            This is an ⚠️ **EXPERIMENTAL** ⚠️ ${{ inputs.release_name }} build for commit [${{ github.sha }}](https://github.com/${{ github.repository }}/commit/${{ github.sha }}).
 
-              ${{ inputs.release_name }} builds are **extremely experimental builds only meant to be used by developers and beta testers. They often contain bugs and experimental features. Use at your own risk!**
+            ${{ inputs.release_name }} builds are **extremely experimental builds only meant to be used by developers and beta testers. They often contain bugs and experimental features. Use at your own risk!**
 
-              If you want to try out new features early but want a lower chance of bugs, you can look at [SideStore ${{ inputs.upstream_name }}](https://github.com/${{ github.repository }}/releases?q=${{ inputs.upstream_tag }}).
+            ${{ steps.upstream_recommendation.outputs.content }}
+            ## Build Info
 
-              ## Build Info
+            Built at (UTC): `${{ steps.date.outputs.date }}`
+            Built at (UTC date): `${{ steps.date_altstore.outputs.date }}`
+            Commit SHA: `${{ github.sha }}`
+            Version: `${{ inputs.version }}`
 
-              Built at (UTC): `${{ steps.date.outputs.date }}`
+            ${{ steps.release_notes.outputs.content }}
-              Built at (UTC date): `${{ steps.date_altstore.outputs.date }}`
-              Commit SHA: `${{ github.sha }}`
-              Version: `${{ inputs.version }}`
-
-              ${{ steps.release_notes.outputs.content }}
 
       - name: Get formatted date
         run: |