Mention encoding in yarl.URL

[Dreamsorcerer]

Hopefully will reduce confusion for users (e.g. #7341).

[codecov]

Codecov Report

Merging #7343 (af246aa) into master (8dfc3ad) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #7343   +/-   ##
=======================================
  Coverage   97.28%   97.28%           
=======================================
  Files         106      106           
  Lines       31399    31399           
  Branches     3924     3924           
=======================================
  Hits        30547    30547           
  Misses        648      648           
  Partials      204      204           

Flag	Coverage Δ
CI-GHA	97.23% <ø> (ø)
OS-Linux	96.90% <ø> (ø)
OS-Windows	95.28% <ø> (-0.08%)	⬇️
OS-macOS	96.59% <ø> (-0.01%)	⬇️
Py-3.10.11	95.28% <ø> (ø)
Py-3.10.12	96.79% <ø> (-0.01%)	⬇️
Py-3.11.0	96.54% <ø> (ø)
Py-3.8.10	?
Py-3.8.17	96.72% <ø> (ø)
Py-3.9.13	?
Py-3.9.17	96.75% <ø> (ø)
Py-pypy7.3.11	94.23% <ø> (-0.01%)	⬇️
VM-macos	96.59% <ø> (-0.01%)	⬇️
VM-ubuntu	96.90% <ø> (ø)
VM-windows	95.28% <ø> (-0.08%)	⬇️

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[patchback]

Backport to 3.8: 💚 backport PR created

✅ Backport PR branch: patchback/backports/3.8/18057581c47de308c60d2f8ce405ba8bd9471ab0/pr-7343

Backported as #7355

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.

[patchback]

Backport to 3.9: 💚 backport PR created

✅ Backport PR branch: patchback/backports/3.9/18057581c47de308c60d2f8ce405ba8bd9471ab0/pr-7343

Backported as #7356

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.