upgrade dependencies

[njugray]

Checklist

• [ ] npm test passes
• [ ] tests are included
• [ ] documentation is changed or added
• [ ] commit message follows commit guidelines

Affected plugin(s)

• beidou-webpack

Description of change

key dependencies upgrade:

• css-loader: 0.28.7 -> 4.0.0
• file-loader: 1.1.11 -> 6.0.0
• less: 2.7.3 -> 3.12.2
• less-loader: 4.0.6 -> 6.2.0
• mini-css-extract-plugin: 0.7.0 -> 0.9.0
• postcss-loader: 2.0.10 -> 3.0.0

[codecov-commenter]

Codecov Report

Merging #238 into master will decrease coverage by 0.70%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #238      +/-   ##
==========================================
- Coverage   92.80%   92.10%   -0.71%     
==========================================
  Files          87       87              
  Lines        1627     1633       +6     
==========================================
- Hits         1510     1504       -6     
- Misses        117      129      +12     

Impacted Files	Coverage Δ
packages/beidou-webpack/lib/plugin/isomorphic.js	97.29% <ø> (ø)
packages/beidou-webpack/config/webpack/utils.js	93.75% <100.00%> (+0.41%)	:arrow_up:
...s/beidou-webpack/config/webpack/webpack.browser.js	100.00% <100.00%> (ø)
...beidou-view-rax/app/view-middlewares/rax-render.js	42.85% <0.00%> (-57.15%)	:arrow_down:
packages/beidou-view-rax/app/extend/helper.js	66.66% <0.00%> (-33.34%)	:arrow_down:
packages/beidou-view-rax/lib/rax-view.js	76.92% <0.00%> (-23.08%)	:arrow_down:
packages/beidou-webpack/app/middleware/webpack.js	84.37% <0.00%> (-12.50%)	:arrow_down:

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 6dce108...e17b918. Read the comment docs.

[codecov-io]

Codecov Report

Merging #238 (5b0011a) into master (6dce108) will decrease coverage by 1.84%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #238      +/-   ##
==========================================
- Coverage   92.80%   90.96%   -1.85%     
==========================================
  Files          87       56      -31     
  Lines        1627      819     -808     
==========================================
- Hits         1510      745     -765     
+ Misses        117       74      -43     

Impacted Files	Coverage Δ
packages/beidou-view-rax/lib/rax-view.js	20.00% <0.00%> (-80.00%)	:arrow_down:
packages/beidou-view-rax/app/extend/helper.js	66.66% <0.00%> (-33.34%)	:arrow_down:
packages/beidou-view-react/app/extend/helper.js
packages/beidou-webpack/config/config.default.js
...s/beidou-view-react/app/view-middlewares/render.js
...beidou-view-rax/app/view-middlewares/rax-render.js
...es/beidou-webpack/config/webpack/webpack.common.js
...ackages/beidou-view-react/config/config.default.js
packages/beidou-view-react/app.js
packages/beidou-view-react/config/config.local.js
... and 10 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 6dce108...2109288. Read the comment docs.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}