Update node-sass to the latest version 🚀

[greenkeeper]

The devDependency node-sass was updated from 4.9.3 to 4.12.0.

This version is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

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Release Notes for v4.12.0

Features

• Node 12 support (@xzyfer, #2632)

Community

• Convert all documentation links to HTTPS (@asottile, #2608)
• Remove out dated documentation (@DerZyklop, #2590)
• Remove @adamyeats from maintainers list (@adamyeats, #2576)
• Update troubleshooting documentation (@nschonni, #2454)
• Clearly document Node version support in README (@nschonni, #2383)

Dependencies

• nan@^2.13.2 (@xzyfer, #2632)
• lodash@4.17.11 (@cheesestringer, #2574)

Supported Environments

OS	Architecture	Node
Windows	x86 & x64	0.10, 0.12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
OSX	x64	0.10, 0.12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
Linux*	x86 & x64	0.10, 0.12, 1, 2, 3, 4, 5, 6, 7, 8**, 9**, 10**^, 11**^, 12**^
Alpine Linux	x64	6, 8, 10, 11, 12

*Linux support refers to Ubuntu, Debian, and CentOS 5+
** Not available on CentOS 5
^ Only available on x64

Commits

The new version differs by 35 commits.

• 23c8659 4.12.0
• bc78b22 Merge pull request #2633 from xzyfer/node-12
• 12c0052 Workaround waiting for AppVeyor to add Node versions
• 9e564a1 Use explicit Node version numbers in CI config
• 5aae0d2 Use Visual Studio 2017 for Node >= 10
• 480250c Use g++4.9 for all Node >= 10 in Travis CI
• f4eebc8 Node 12 requires at least nan@2.13.2
• 34f99a2 Fix OSX compilation for Mojavi
• da10866 Add support for Node 12
• 0f86a0a Update README.md (#2617)
• 33a32c3 https-ify sass-lang.com urls (#2608)
• a2ac801 removed outdated TOC entries
• 44366b3 Update lodash and remove prototype vulnerabilities
• 088b80b Remove @adamyeats from maintainers list
• 7c1dd8e Merge pull request #2454 from nschonni/troubleshooting-edits

There are 35 commits in total.

See the full diff

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