dvcfs: add basic fsid

[efiop]

Implements fsspec's fsid fsspec/filesystem_spec#1122

Note that this is not rigid and we can change it up as we go.

Depends on iterative/dvc-data#436
Fixes #9904

[codecov]

Codecov Report

Patch coverage is 100.00% of modified lines.

Files Changed	Coverage
dvc/fs/dvc.py	100.00%

📢 Thoughts on this report? Let us know!.

[shcheklein]

Getting this here from Slack for visibility and to not mix conversations.

Curious if this can and should be tested.

[efiop]

@shcheklein If you are talking about the linked issue then no, this is not a dvc-level thing, this is a dvc-data/fs level logic fault, there is no simple good test for that (... that I can see on the spot).

[shcheklein]

@shcheklein If you are talking about the linked issue then no, this is not a dvc-level thing, this is a dvc-data/fs level logic fault, there is no simple good test for that.

A unit test on the dvc-data/fs side? That we identify / dedup FS instances by specific fields? (id vs protocol + something)?

[efiop]

@shcheklein I don't think it is necessary right now.

[efiop]

Added tests in #9934 and caught noscm bug 🤦