Pin dependencies

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
@google/clasp	devDependencies	pin	^2.3.0 -> 2.3.1
chai (source)	devDependencies	pin	^4.2.0 -> 4.2.0
del	devDependencies	pin	^1.2.1 -> 1.2.1
eslint (source)	devDependencies	pin	^4.19.1 -> 4.19.1
eslint-config-google	devDependencies	pin	^0.9.1 -> 0.9.1
fibers	devDependencies	pin	^4.0.2 -> 4.0.2
gas-local	devDependencies	pin	^1.3.1 -> 1.3.1
gulp (source)	devDependencies	pin	^4.0.2 -> 4.0.2
gulp-clean	devDependencies	pin	^0.4.0 -> 0.4.0
gulp-concat	devDependencies	pin	^2.6.1 -> 2.6.1
gulp-contains	devDependencies	pin	^1.2.0 -> 1.2.0
gulp-eslint	devDependencies	pin	^4.0.2 -> 4.0.2
gulp-rename	devDependencies	pin	^1.4.0 -> 1.4.0
jsdoc	devDependencies	pin	^3.6.4 -> 3.6.4
mocha (source)	devDependencies	pin	^5.0.0 -> 5.0.3
urlsafe-base64	devDependencies	pin	^1.0.0 -> 1.0.0

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

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