chore: update to ipld-dag-cbor 0.13

[vmx]

No further changes are needed as js-ipfs-api is getting the raw blocks
from IPFS and does the whole parsing client-sided in JavaScript.

BREAKING CHANGE: dag-cbor nodes now represent links as CID objects

The API for dag-cbor changed.
Links are no longer represented as JSON objects ({"/": "base-encoded-cid"},
but as CID objects. ipfs.dag.get() and
now always return links as CID objects. ipfs.dag.put() also expects links
to be represented as CID objects. The old-style JSON objects representation
is still supported, but deprecated.

Prior to this change:

const cid = new CID('QmXed8RihWcWFXRRmfSRG9yFjEbXNxu1bDwgCFAN8Dxcq5')
// Link as JSON object representation
const putCid = await ipfs.dag.put({link: {'/': cid.toBaseEncodedString()}})
const result = await ipfs.dag.get(putCid)
console.log(result.value)

Output:

{ link:
   { '/':
      <Buffer 12 20 8a…> } }

Now:

const cid = new CID('QmXed8RihWcWFXRRmfSRG9yFjEbXNxu1bDwgCFAN8Dxcq5')
// Link as CID object
const putCid = await ipfs.dag.put({link: cid})
const result = await ipfs.dag.get(putCid)
console.log(result.value)

Output:

{ link:
   CID {
     codec: 'dag-pb',
     version: 0,
     multihash:
      <Buffer 12 20 8a…> } }

See ipld/ipld#44 for more information on why this
change was made.

[alanshaw]

Waiting on CI for merge

[daviddias]

only single (schrondinger) test failing is not related to this PR

Good to merge and release