Updated Travis config to run phpcs only once. Thanks @jrfnl

Author: rfmeier

.travis.yml

@@ -32,6 +32,7 @@ matrix:
       env: WP_VERSION=latest WP_MULTISITE=1
     - php: 7.3
       env: NPM_TESTS=1
+      env: PHPCS=1
   exclude:
     - php: 7.3
       env: WP_VERSION=4.5
@@ -87,12 +88,12 @@ before_script:
     fi
 script:
   - |
+    if [[ "$PHPCS" == "1" ]]; then
+      composer phpcs
+    fi
+
     if [[ "$NPM_TESTS" == "1" ]]; then
       npm test
     else
-      if [[ "$TRAVIS_PHP_VERSION" != "5.2" ]]; then
-        composer phpcs
-      fi
-
       phpunit
     fi