fix(deps): update middy-js monorepo to v7.6.8

Author: renovate[bot]

package-lock.json

@@ -43,8 +43,8 @@
   },
   "dependencies": {
     "@aws-lambda-powertools/metrics": "2.33.1",
-    "@middy/core": "7.6.7",
-    "@middy/input-output-logger": "7.6.7",
+    "@middy/core": "7.6.8",
+    "@middy/input-output-logger": "7.6.8",
     "@nrfcloud/problem-detail": "npm:@jsr/nrfcloud__problem-detail@^1.4.1",
     "@sinclair/typebox": "0.34.49"
   }