Replace is-ci with ci-info.isCI

[TheDevMinerTV]

is-ci is literally just an export wrapper for ci-info's isCI field, so we can just replace it everywhere we see it. That'd save 3KB and 2 HTTP roundtrips during installation.

[TheDevMinerTV]

Replaced it in Cypress: cypress-io/cypress#30465
Edit: got merged 🎉

[TheDevMinerTV]

Replaced it in html-minifier-terser: terser/html-minifier-terser#189

[Fuzzyma]

Here is a list of the top 20 packages using is-ci according to npm.js (which does not contain all dependents because it only allows the first 396 to be crawled):

Stats are downloads last-month.

#	Downloads	Traffic	Package
1	5.25M	11.28 GB	lerna
2	5.15M	11.08 GB	@lerna/create
3	2.08M	4.47 GB	update-notifier-cjs
4	2.07M	4.46 GB	yorkie
5	2.03M	4.37 GB	@lerna/command
6	1.43M	3.08 GB	builder-util
7	1.43M	3.07 GB	yurnalist
8	1.39M	2.99 GB	app-builder-lib
9	1.32M	2.85 GB	electron-builder
10	1.29M	2.77 GB	npm-check
11	908.76k	1.95 GB	testcafe
12	709.21k	1.52 GB	@aws-amplify/platform-core
13	612.93k	1.32 GB	@lerna/legacy-package-management
14	234.66k	504.53 MB	@aws-amplify/graphql-api-construct
15	224.21k	482.05 MB	@aws-amplify/data-construct
16	214.74k	461.70 MB	@aws-amplify/backend-cli
17	174.72k	375.64 MB	is-ci-cli
18	106.89k	229.81 MB	hint
19	102.37k	220.10 MB	@hint/connector-puppeteer
20	94.58k	203.35 MB	@prisma/sdk

[43081j]

update-notifier-cjs looks like it has these we can replace:

• chalk
• is-ci
• strip-ansi

Could be a good couple of PRs!