bump yargs to 15.4.1

Author: mikeharder

package.json

@@ -23,7 +23,7 @@
     "source-map": "0.7.6",
     "tslib": "^2.6.3",
     "winston": "^3.13.0",
-    "yargs": "^18.0.0"
+    "yargs": "^15.4.1"
   },
   "devDependencies": {
     "@eslint/js": "^9.4.0",
@@ -32,7 +32,7 @@
     "@types/js-yaml": "^4.0.9",
     "@types/json-pointer": "^1.0.30",
     "@types/node": "^20.0.0",
-    "@types/yargs": "^13.0.0",
+    "@types/yargs": "^15.0.19",
     "eslint": "^8.57.0",
     "jest": "^30.1.3",
     "prettier": "^3.3.2",