chore(deps): update dependency @bifravst/eslint-config-typescript to v6.4.0

Author: renovate[bot]

package-lock.json

@@ -33,7 +33,7 @@
     "@bifravst/bdd-markdown": "8.2.66",
     "@bifravst/ci": "2.0.01",
     "@bifravst/cloudformation-helpers": "9.1.1",
-    "@bifravst/eslint-config-typescript": "6.1.20",
+    "@bifravst/eslint-config-typescript": "6.4.0",
     "@bifravst/prettier-config": "1.1.8",
     "@commitlint/config-conventional": "19.8.1",
     "@types/aws-lambda": "8.10.149",