Pin dependencies

Created by: renovate[bot]

This PR contains the following updates:

Package	Type	Update	New value	References	Sourcegraph
@​types/babel__core	devDependencies	pin	7.0.1	source
@​types/fancy-log	devDependencies	pin	1.3.0	source
@​types/graphql	devDependencies	pin	14.0.3	source
@​types/gulp	devDependencies	pin	4.0.5	source
@​types/highlight.js	devDependencies	pin	9.12.3	source
@​types/marked	devDependencies	pin	0.4.2	source
@​types/mkdirp-promise	devDependencies	pin	5.0.0	source
@​types/react	devDependencies	pin	16.7.3	source
@​types/react-dom	devDependencies	pin	16.0.9	source
@​types/react-router	devDependencies	pin	4.4.1	source
@​types/react-router-dom	devDependencies	pin	4.3.1	source
@​types/reactstrap	devDependencies	pin	6.4.2	source
@​types/sinon	devDependencies	pin	5.0.5	source
@​types/webpack-dev-server	devDependencies	pin	3.1.1	source

📌 Important: Renovate will wait until you have merged this Pin PR before creating any upgrade PRs for the affected packages. Add the preset :preserveSemverRanges your config if you instead don't wish to pin dependencies.

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