fix(deps): update dependency @netlify/edge-functions to v2.15.6 (#7388)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -64,7 +64,7 @@
     "@netlify/build-info": "10.0.7",
     "@netlify/config": "23.0.11",
     "@netlify/edge-bundler": "14.0.6",
-    "@netlify/edge-functions": "2.15.5",
+    "@netlify/edge-functions": "2.15.6",
     "@netlify/headers-parser": "9.0.1",
     "@netlify/local-functions-proxy": "2.0.3",
     "@netlify/redirect-parser": "15.0.2",