chore(deps): Bump useragent to 2.3.0 to fix #2762

[rkuzsma]

Bump useragent 2.3.0 to pull in ua-parser/uap-core#263 in which Headless Chrome version detected to be 0.0.0.

Fixes #2762

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[rkuzsma]

I signed it!

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CLAs look good, thanks!

[rkuzsma]

I'm aborting this PR so I can review some unit test failures more closely.

[rkuzsma]

I closed this PR in favor of #3201