add build-secrets option (#61)

action.yaml

@@ -79,6 +79,9 @@ inputs:
     required: false
     default: false
     description: "If true image and DAGs will deploy"
+  build-secrets:
+    required: false
+    description: "Mimics docker build --secret flag. See https://docs.docker.com/build/building/secrets/ for more information. Example input 'id=mysecret,src=secrets.txt'"
 outputs:
   preview-id:
     description: "The ID of the created deployment preview. Only works when action=create-deployment-preview"
@@ -330,6 +333,11 @@ runs:
           options="$options --description '${{ inputs.description }}'"
         fi
 
+        # Add build-secrets option
+        if [[ "${{ inputs.build-secrets }}" != '' ]]; then
+          options="$options --build-secrets '${{ inputs.build-secrets }}'"
+        fi
+
         echo "OPTIONS=$options" >> $GITHUB_OUTPUT
       shell: bash
       id: deploy-options