Update action.yml

Author: escbeargew99-stack

.github/actions/prepare-for-docker-build/action.yml

@@ -1,7 +1,7 @@
 name: Prepare for Docker Build
 description: Set up Docker Build dependencies (without pushing) and run Maven build
 
-inputs:
+inputs: 
   image:
     description: Image name
     required: true
@@ -56,4 +56,4 @@ runs:
         source env/bin/activate
         pip install --upgrade pip
         sudo make install_antlr_cli
-        make install_dev generate
+        make install_dev generate