chore: pin dependencies

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@babel/cli (source)	devDependencies	pin	^7.7.7 -> 7.7.7
@babel/core (source)	devDependencies	pin	^7.7.7 -> 7.7.7
@types/git-raw-commits	devDependencies	pin	^2.0.0 -> 2.0.0
core-js	dependencies	pin	^3.6.1 -> 3.6.1

📌 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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[byCedric]

@marionebl @escapedcat What are your opinions about using fixed dependencies? I saw some issues related to those having a negative side effect, like #856 and #840. Maybe it's good to get some alignment on this?