Add delete step

Author: tomwhite

.github/workflows/build-runtime.yml

@@ -53,7 +53,7 @@ jobs:
           cp .lithops/config ~/.lithops/config
 
       - name: Delete existing runtime
-        run: lithops runtime delete ${{ env.RUNTIME_NAME }} -b aws_lambda --yes || true
+        run: lithops runtime delete -d ${{ env.RUNTIME_NAME }} -b aws_lambda
 
       - name: Build runtime
         run: lithops runtime build ${{ env.RUNTIME_NAME }} -b aws_lambda -f Dockerfile