Revert sass-loader from 14 to 13 to be compatible with Node16

[leemyongpakva]

Questions	Answers
Description?	sass-loader 14.1.0 require at least Node 18.12.0, that most of packages in this repo are not compatible to. dependabot tried to bump sass-loader from v13 to v14 in #638 and #643
Type?	bug fix
BC breaks?	no
Deprecations?	no
Fixed ticket?	Fixes #{issue URL here}, Fixes #{another issue URL here}
Sponsor company	Your company or customer's name goes here (if applicable).
How to test?	Apply the PR change, then try npm install & npm run build with Node 16

[leemyongpakva]

@AureRita What can we do next with this PR ?

[leemyongpakva]

@matthieu-rolland We are in need of this PR merge for Release v6.0.0. AureRita removed Waiting QA so I guess you can make QA by dev.

[AureRita]

Hi @leemyongpakva

Sorry for the long time you spend without my answer, currently this one can only be QAed by dev, I'll put a waiting for dev to give your PR more visibility

[leemyongpakva]

OK. It looks like we have a plan to stop using Node 14 and Node 16 in this repo ;)