chore: update dag-pb dep (#3070)

Author: Gozala

package.json

@@ -51,7 +51,7 @@
     "ipfs-utils": "^2.2.2",
     "ipld-block": "^0.9.1",
     "ipld-dag-cbor": "^0.15.2",
-    "ipld-dag-pb": "^0.18.5",
+    "ipld-dag-pb": "^0.19.0",
     "ipld-raw": "^5.0.0",
     "iso-url": "^0.4.7",
     "it-last": "^1.0.1",