chore(deps): replace paste with pastey

[dyc3]

This Pull Request fixes/closes N/A.

It changes the following:

• replaces the paste crate with pastey

paste is unmaintained. pastey is a drop in replacement, and is currently maintained.

This PR was generated with gpt 5.4, but its pretty much just a string replacement of the crate name.

The reason I made this PR is because we want to use cargo-deny to deny this crate in our project, but cargo-deny currently doesn't allow handling transitive dependencies differently.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	53,125	53,125	0
Passed	51,049	51,049	0
Ignored	1,482	1,482	0
Failed	594	594	0
Panics	0	0	0
Conformance	96.09%	96.09%	0.00%

Tested main commit: ea390c65402acee74a40d282c38cd4df9b556ad3
Tested PR commit: c9ee5ac13d3228266009ab1da9d9f8c465a79da2
Compare commits: ea390c6...c9ee5ac

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.74%. Comparing base (6ddc2b4) to head (c9ee5ac).
⚠️ Report is 941 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #5223       +/-   ##
===========================================
+ Coverage   47.24%   59.74%   +12.49%     
===========================================
  Files         476      589      +113     
  Lines       46892    63604    +16712     
===========================================
+ Hits        22154    38000    +15846     
- Misses      24738    25604      +866     

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[jedel1043]

Fair enough. We also might wanna migrate away from paste by using trait magic, but that can be a future enhancement.