fix: 修复sass/less-loader的路径解析

[YufJi]

close #1767

接入loader-runner层，可直接运行sass/less-loader

Please don't delete this checklist! Before submitting the PR, please make sure you do the following:

• It's really useful if your PR references an issue where it is discussed ahead of time. In many cases, features are absent for a reason. For large changes, please create an RFC.
• This message body should clearly illustrate what problems it solves.
• Ideally, include a test that fails without this PR but passes with it.

Tests

• Run the tests and other checks with just ready

Edits

• Please ensure that 'Allow edits from maintainers' is checked. PRs without this option may be closed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.04%. Comparing base (54719e0) to head (2366581).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1771   +/-   ##
=======================================
  Coverage   53.04%   53.04%           
=======================================
  Files         190      190           
  Lines       18974    18974           
=======================================
  Hits        10065    10065           
  Misses       8909     8909           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 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.

[PeachScript]

看上去是把 sass-loader 做的事又做了一遍，不知道有没有更好的解法，比如：

1. 直接依赖 sass-loader 设法复用相关逻辑
2. 搞个适配层直接用 sass-loader
3. ……

cc @xusd320 @sorrycc @Jinbao1001

[xusd320]

+1