Update dependency @wdio/local-runner to v7.5.4

Author: renovate-bot

package-lock.json

@@ -6,7 +6,7 @@
   "dependencies": {
     "@wdio/cli": "7.5.3",
     "@wdio/dot-reporter": "7.5.3",
-    "@wdio/local-runner": "7.5.3",
+    "@wdio/local-runner": "7.5.4",
     "@wdio/mocha-framework": "7.5.3",
     "@wdio/sync": "7.5.3",
     "chromedriver": "90.0.0",