Upgrade webpack to 5.59.1 to resolve the waitFor bug with watch-frontend

[wxiaoguang]

Webpack < 5.59 has a bug, which makes watch-frontend fail when editing .less files.

ERROR in ./web_src/less/index.less
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
Error: waitFor can only be called for an already started item
    at AsyncQueue.waitFor (/Users/user/work/gitea/node_modules/webpack/lib/util/AsyncQueue.js:180:5)
    at /Users/user/work/gitea/node_modules/webpack/lib/Compilation.js:4690:25
    at processQueue (/Users/user/work/gitea/node_modules/webpack/lib/util/processAsyncTree.js:50:4)
    at processTicksAndRejections (internal/process/task_queues.js:79:11)

Related webpack issues and PR:

https://github.com/webpack-contrib/mini-css-extract-plugin/issues/856
https://github.com/webpack/webpack/issues/14484
https://github.com/webpack/webpack/pull/14507

[codecov-commenter]

Codecov Report

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@@           Coverage Diff           @@
##             main   #17428   +/-   ##
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  Coverage        ?   45.39%           
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  Files           ?      791           
  Lines           ?    88674           
  Branches        ?        0           
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  Hits            ?    40255           
  Misses          ?    41906           
  Partials        ?     6513           

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[kdumontnu]

Nice catch!