fix(npm): set CI=true in Yarn generateLockFile

[ylemkimon]

This PR set the environment variable CI to true when running Yarn. This will:

• disable progress bars (this is already disabled by non-tty output)
• print the build output on the command line (Yarn 2)
• only print a one-line report of any cache changes (Yarn 2, Post-update command terminated with ERR_CHILD_PROCESS_STDIO_MAXBUFFER #7206, most of output produced by Yarn is ➤ YN0013: │ XYZ can't be found in the cache and will be fetched from the remote registry)
• disable telemetry (Yarn 2)

[renovate-release]

🎉 This PR is included in version 23.20.3 🎉

The release is available on:

• GitHub release
• 23.20.3

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