chore: update mysql2

[david-luna]

Follow up of #5094. It includes the version checking for tests.

[github-actions]

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• run docs-build : Re-trigger the docs validation. (use unformatted text in the comment!)

[trentm]

Oh, I missed that test-vers (14.17) is still failing.

[david-luna]

I missed there is another test file 🤦

running test: node --unhandled-rejections=strict test/instrumentation/modules/mysql2/mysql.test.js
# SKIP mysql2@3.22.3 does not support node v14.17.6
running test: node --unhandled-rejections=strict test/instrumentation/modules/mysql2/pool-release-1.test.js
{"log.level":"info","@timestamp":"2026-07-06T14:48:55.689Z","log.logger":"elastic-apm-node","ecs.version":"8.10.0","agentVersion":"4.17.0","env":{"pid":9614,"proctitle":"node","os":"linux 6.17.0-1018-azure","arch":"x64","host":"runnervmkkn4f","timezone":"UTC+00","runtime":"Node.js v14.17.6"},"config":{"captureExceptions":{"source":"start","value":false},"centralConfig":{"source":"start","value":false},"logLevel":{"source":"default","value":"info","commonName":"log_level"},"metricsInterval":{"source":"start","value":0},"serverUrl":{"source":"default","value":"http://127.0.0.1:8200/","commonName":"server_url"},"secretToken":{"source":"start","value":"[REDACTED]","commonName":"secret_token"},"serviceName":{"source":"start","value":"test","commonName":"service_name"},"serviceVersion":{"source":"default","value":"4.17.0","commonName":"service_version"}},"activationMethod":"require","message":"Elastic APM Node.js Agent v4.17.0"}
internal/modules/cjs/loader.js:892