chore: update deps, replace deprecated mock clock lib

[rvagg]

This is an attempt to deal with #492 by upgrading the go-libipni dependency. I've upgrade almost everything else in the process, with some caveats:

• I've gone off the previously tagged boxo 894484c9e656 which was there to fix a bug we consistently experience(d) here, 🤞 that it's dealt with in some form, or that current usage patterns of Lassie don't hit it (no Saturn).
• I've held back from the very latest boxo because it has a heap of breaking bitswap changes I don't have time to grok.
• I hard-wired older versions in the e2e test for storetheindex and ipni-cli which I haven't updated here. I think I might need to do some coordinating with frisbii to make those happy, and I don't have time so I'm leaving it for now.

Also, I haven't actually tested that it works, I don't have a good CID to query the indexer with that would give me an http-path response (I can't get any good responses from ipni atm, so 🤷)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.40%. Comparing base (53f405f) to head (c643c7f).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #495      +/-   ##
==========================================
- Coverage   75.78%   75.40%   -0.38%     
==========================================
  Files          87       87              
  Lines        6661     6661              
==========================================
- Hits         5048     5023      -25     
- Misses       1338     1352      +14     
- Partials      275      286      +11     

Files with missing lines	Coverage Δ
pkg/internal/candidatebuffer/candidatebuffer.go	89.83% <ø> (ø)
pkg/internal/mockindexer/mockindexer.go	62.50% <ø> (ø)
pkg/internal/testutil/mockclient.go	54.34% <ø> (ø)
pkg/internal/testutil/mockroundtripper.go	87.92% <ø> (ø)
pkg/internal/testutil/verifier.go	96.49% <ø> (ø)
pkg/retriever/assignablecandidatefinder.go	100.00% <ø> (ø)
pkg/retriever/bitswapretriever.go	95.83% <ø> (ø)
pkg/retriever/graphsyncretriever.go	85.62% <ø> (ø)
pkg/retriever/httpretriever.go	86.82% <ø> (ø)
pkg/retriever/parallelpeerretriever.go	90.80% <ø> (ø)
... and 2 more

... and 6 files with indirect coverage changes