Update dependency mysql2 to v3.22.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
mysql2 (source)	3.20.0 → 3.22.0

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Release Notes

sidorares/node-mysql2 (mysql2)

v3.22.0

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Features

• disable mysql_clear_password plugin by default (#​4236) (884bec5), closes #​1617
• implement COM_RESET_CONNECTION with pool integration (#​4148) (49a64cc)

Performance Improvements

• defer Error object creation to error handlers in promise wrappers (#​4257) (ab131de)

v3.21.1

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Bug Fixes

• limit client flags to server capabilities (#​4227) (e1930b8)
• use Number.isSafeInteger for supportBigNumbers boundary check (#​4225) (295264b)

v3.21.0

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Features

• add support for query attributes (#​4223) (d732f78)
• types: export ExecuteValues and QueryValues from entry point (9fafd6f)

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