Add docker login

Signed-off-by: KeisukeYamashita <19yamashita15@gmail.com>

Author: KeisukeYamashita

.github/workflows/release.yml

@@ -15,6 +15,10 @@ jobs:
       - uses: actions/setup-go@v2
         with:
           go-version: 1.15
+      - name: Docker Login
+        run: echo "$GITHUB_TOKEN" | docker login ghcr.io -u USERNAME --password-stdin
+        env:
+          GITHUB_TOKEN: ${{ secrets.KEKENIKER_GITHUB_TOKEN }}
       - uses: goreleaser/goreleaser-action@v2
         with:
           version: latest