fix drone?

.drone.yml

@@ -5,34 +5,34 @@ name: testsuite
 steps:
 
 - name: composer install
-	image: chialab/php
+    image: chialab/php
-	commands:
+    commands:
-	- composer install
+    - composer install
-	volumes:
+    volumes:
-	- name: composer-cache
+    - name: composer-cache
-		path: /root/.composer/cache/
+        path: /root/.composer/cache/
 
 - name: wait for test server
-	image: alpine
+    image: alpine
-	commands:
+    commands:
-	- echo "Waiting for server to launch on testserver:8080..."
+    - echo "Waiting for server to launch on testserver:8080..."
-	- while ! nc -z testserver 8080; do sleep 0.1 ; done
+    - while ! nc -z testserver 8080; do sleep 0.1 ; done
-	- echo "Ready!"
+    - echo "Ready!"
 
 - name: run tests
-	image: chialab/php
+    image: chialab/php
-	environment:
+    environment:
     - URL=testserver:8080
-	commands:
+    commands:
-	- sleep 10
+    - sleep 10
-	- vendor/bin/phpunit tests
+    - vendor/bin/phpunit tests
 
-services :
+services:
 
 - name: testserver
-	image: node
+    image: node
-	detach: true
+    detach: true
-	commands:
+    commands:
-	- cd tests/server/
+    - cd tests/server/
-	- npm install
+    - npm install
-	- node server.js
+    - node server.js