Remove use of ipfs.object.* from test suite

[achingbrain]

If we ever want to deprecate ipfs.object.* we should not rely on it in our interface tests, because then new implementations have to implement "soon"-to-be-deprecated-APIs which makes no sense.

We should remove all uses of ipfs.object.* and replace it with ipfs.dag.* or whatever makes sense.

[SgtPooki]

js-ipfs is being deprecated in favor of Helia. You can #4336 and read the migration guide.

Please feel to reopen with any comments by 2023-06-02. We will do a final pass on reopened issues afterward (see #4336).

This issue won't be fixed in js-ipfs but there is replacement functionality available in Helia that should work much better.