Update dockerimage.yml

Author: grammy-jiang

.github/workflows/dockerimage.yml

@@ -23,5 +23,5 @@ jobs:
         run: |
           scversion="stable" # or "v0.4.7", or "latest"
           wget -qO- "https://storage.googleapis.com/shellcheck/shellcheck-${scversion?}.linux.x86_64.tar.xz" | tar -xJv
-          cp "shellcheck-${scversion}/shellcheck" /usr/bin/
+          sudo cp "shellcheck-${scversion}/shellcheck" /usr/bin/
           shellcheck --version