Remove extra '-'s from .buildkite/pipeline.yml

Author: oguzkocer

.buildkite/pipeline.yml

@@ -8,21 +8,21 @@ docker-container: &docker-container
 steps:
   - label: "checkstyle"
     <<: *docker-container
-    commands:
-      - cp gradle.properties-example gradle.properties
-      - ./gradlew checkstyle
+    command: |
+      cp gradle.properties-example gradle.properties
+      ./gradlew checkstyle
   - label: "ktlint"
     <<: *docker-container
-    commands:
-      - cp gradle.properties-example gradle.properties
-      - ./gradlew ciktlint
+    command: |
+      cp gradle.properties-example gradle.properties
+      ./gradlew ciktlint
   - label: "detekt"
     <<: *docker-container
-    commands:
-      - cp gradle.properties-example gradle.properties
-      - ./gradlew WordPress:detekt
+    command: |
+      cp gradle.properties-example gradle.properties
+      ./gradlew WordPress:detekt
   - label: "lint"
     <<: *docker-container
-    commands:
-      - cp gradle.properties-example gradle.properties
-      - ./gradlew lintWordpressVanillaRelease
+    command: |
+      cp gradle.properties-example gradle.properties
+      ./gradlew lintWordpressVanillaRelease