test(path): run path tests in node and bun

[kt3k]

This PR adds tests of path in Node and Bun

ref #7103

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.61%. Comparing base (0796a25) to head (161b494).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7104   +/-   ##
=======================================
  Coverage   94.60%   94.61%           
=======================================
  Files         633      633           
  Lines       51777    51777           
  Branches     9324     9324           
=======================================
+ Hits        48986    48987    +1     
  Misses       2216     2216           
+ Partials      575      574    -1     

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[kt3k]

The below works differently in Deno and Node:

const u = new URL("file:///");
u.pathname = "//foo";
console.log(u.href);
// prints file:///foo in Deno
// prints file:////foo in Node, Bun, and browsers

This change normalizes the differences above (and therefore no breaking changes to deno users)

[kt3k]

Created an issue in rust-url about the above behavior servo/rust-url#1118