fix: valid generation `url()` for `auto` value of the `publicPath` op…

[alexander-akait]

…tion

This PR contains a:

• [x] bugfix
• [ ] new feature
• [ ] code refactor
• [x] test update
• [ ] typo fix
• [ ] metadata update

Motivation / Use-Case

try to fix #848

Breaking Changes

No

Additional Info

Because auto allows to do relative paths in url(), we just do not allow new URL(...) to change URL using #, note - you should avoid writing stuff ./foo/../foo/image.png, because it will be not simplified and will be keeping as it

[codecov[bot]]

Codecov Report

Merging #852 (3bdd6ac) into master (be7269d) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #852   +/-   ##
=======================================
  Coverage   91.75%   91.75%           
=======================================
  Files           6        6           
  Lines         776      776           
  Branches      199      199           
=======================================
  Hits          712      712           
  Misses         58       58           
  Partials        6        6           

Impacted Files	Coverage Δ
src/utils.js	68.49% <100.00%> (ø)

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[alexander-akait]

hm, not safe for windows...