Update dependency concurrently to v9 (#591)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -144,7 +144,7 @@
     "audit-ci": "^7.1.0",
     "axe-core": "^4.10.0",
     "chokidar": "^3.6.0",
-    "concurrently": "^8.2.2",
+    "concurrently": "^9.0.1",
     "cookie-session": "^2.1.0",
     "cypress": "^13.13.3",
     "cypress-axe": "^1.5.0",