Pin dependencies

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
body-parser	dependencies	pin	^1.17.1 -> 1.19.0
classlist.js	dependencies	pin	^1.1.20150312 -> 1.1.20150312
del	dependencies	pin	^2.2.2 -> 2.2.2
dotenv	dependencies	pin	^4.0.0 -> 4.0.0
express (source)	dependencies	pin	^4.15.2 -> 4.17.1
gulp (source)	devDependencies	pin	^3.9.1 -> 3.9.1
gulp-concat	devDependencies	pin	^2.6.1 -> 2.6.1
gulp-jshint	devDependencies	pin	^2.0.4 -> 2.1.0
gulp-rename	devDependencies	pin	^1.2.2 -> 1.4.0
gulp-sass	devDependencies	pin	^3.1.0 -> 3.2.1
gulp-sourcemaps	devDependencies	pin	^2.4.1 -> 2.6.5
gulp-uglify	devDependencies	pin	^2.0.1 -> 2.1.2
gulp-uglifycss	devDependencies	pin	^1.1.0 -> 1.1.0
jshint (source)	devDependencies	pin	^2.10.2 -> 2.12.0
jshint-stylish	devDependencies	pin	^2.2.1 -> 2.2.1
uglify-js	devDependencies	pin	^3.6.0 -> 3.10.2

📌 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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