Fix sed command

Author: BehnH

.github/workflows/main.yml

@@ -93,7 +93,7 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Swap full line for action to use Dockerfile
         run: |
-          sed -i 's/image:.*/image: "Dockerfile"' action.yml
+          sed -i 's/image:.*/image: "Dockerfile"/' action.yml
       - name: Find LaunchDarkly feature flags in diff
         uses: ./ # Uses an action in the root directory
         id: find-flags