vfs: resolve symlinks when checking rename descendants

[trivikr]

Fixes: #65903

Check resolved source and destination parent paths before renaming a directory to prevent moving it into its own subtree through a symlink.

---

Assisted-by: codex

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.18%. Comparing base (b949c28) to head (648406e).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #65904   +/-   ##
=======================================
  Coverage   90.17%   90.18%           
=======================================
  Files         771      771           
  Lines      265097   265102    +5     
  Branches    50363    50362    -1     
=======================================
+ Hits       239059   239090   +31     
+ Misses      16971    16955   -16     
+ Partials     9067     9057   -10     

Files with missing lines	Coverage Δ
lib/internal/vfs/providers/memory.js	96.02% <100.00%> (+0.83%)	⬆️

... and 34 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.