ci: replace --rm-dist with --clean for goreleaser (pingcap#182)

* Update release.yaml

Author: Yui-Song

.github/workflows/release.yaml

@@ -20,7 +20,7 @@ jobs:
         uses: goreleaser/goreleaser-action@v1
         with:
           version: latest
-          args: release
+          args: release --clean
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -29,7 +29,7 @@ jobs:
         uses: goreleaser/goreleaser-action@v1
         with:
           version: latest
-          args: build --snapshot
+          args: build --snapshot --clean
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Package