fix(deps): update dependency @sanity/next-loader to ^1.6.3 (main) (#2549)

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

Author: renovate[bot]

packages/next-sanity/package.json

@@ -146,7 +146,7 @@
   "dependencies": {
     "@portabletext/react": "^3.2.1",
     "@sanity/client": "catalog:",
-    "@sanity/next-loader": "^1.6.2",
+    "@sanity/next-loader": "^1.6.3",
     "@sanity/preview-kit": "^6.1.1",
     "@sanity/preview-url-secret": "catalog:",
     "@sanity/visual-editing": "^2.15.0",