Update to 2024 edition everywhere else

[Stebalien]

In my last commits, I updated the workspace edition but we didn't use that edition in all crates. I've now changed all crates to use the workspace edition.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 77.50%. Comparing base (da88c68) to head (99c6a7c).

Files with missing lines	Patch %	Lines
ipld/kamt/src/pointer.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2170   +/-   ##
=======================================
  Coverage   77.50%   77.50%           
=======================================
  Files         147      147           
  Lines       15743    15743           
=======================================
  Hits        12201    12201           
  Misses       3542     3542           

Files with missing lines	Coverage Δ
ipld/amt/src/amt.rs	82.88% <ø> (ø)
ipld/amt/src/diff.rs	85.52% <ø> (ø)
ipld/amt/src/iter.rs	96.08% <ø> (ø)
ipld/amt/src/lib.rs	94.11% <ø> (ø)
ipld/amt/src/node.rs	86.33% <100.00%> (ø)
ipld/amt/src/root.rs	97.10% <ø> (ø)
ipld/bitfield/src/lib.rs	78.42% <ø> (ø)
ipld/bitfield/src/rleplus/mod.rs	90.60% <ø> (ø)
ipld/car/src/lib.rs	89.91% <ø> (ø)
ipld/car/src/util.rs	80.00% <ø> (ø)
... and 12 more

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