build(deps): pin dependency @stoplight/spectral-formats to 1.8.2

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

Author: renovate[bot]

package-lock.json

@@ -32,7 +32,7 @@
     "test": "test"
   },
   "devDependencies": {
-    "@stoplight/spectral-formats": "^1.5.0",
+    "@stoplight/spectral-formats": "1.8.2",
     "@types/adm-zip": "^0.5.6",
     "@types/express": "^5.0.1",
     "@types/jest": "^30.0.0",