fix: content-type for dag-cbor and dag-json renders

Author: alanshaw

package-lock.json

@@ -45,7 +45,7 @@
     "@ucanto/transport": "^9.1.1",
     "@web3-storage/blob-fetcher": "^3.0.0",
     "@web3-storage/capabilities": "^17.4.1",
-    "@web3-storage/gateway-lib": "^5.2.1",
+    "@web3-storage/gateway-lib": "^5.2.2",
     "dagula": "^8.0.0",
     "http-range-parse": "^1.0.0",
     "lnmap": "^2.0.0",