fix(deps): update dependency execa to v9

Author: renovate[bot]

package-lock.json

@@ -50,7 +50,7 @@
   },
   "dependencies": {
     "@travi/cli-messages": "^1.0.1",
-    "execa": "^7.2.0"
+    "execa": "^9.0.0"
   },
   "devDependencies": {
     "@cucumber/cucumber": "9.6.0",