ci: remove redundant checkout step for release; merge multiple outputs

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I64cbd7dfc64089c38bee4cffbbc279c96a6a6964

.github/workflows/release.yml

@@ -39,7 +39,7 @@ jobs:
           GOARCH: ${{ matrix.goarch }}
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: watchdog-${{ matrix.goos }}-${{ matrix.goarch }}
           path: watchdog-*
@@ -50,12 +50,12 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v6
-
       - name: Download all artifacts
         uses: actions/download-artifact@v8
         with:
           path: artifacts
+          pattern: watchdog-*
+          merge-multiple: true
 
       - name: Create GitHub Release
         uses: softprops/action-gh-release@v2