fix(node-core): Align pino mechanism type with spec conventions

[logaretm]

In #18631 we noticed that Pino logs didn't match the mechanism types we are expecting, this PR addresses that.

[github-actions]

Codecov Results 📊

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[github-actions]

node-overhead report 🧳

Note: This is a synthetic benchmark with a minimal express app and does not necessarily reflect the real-world performance impact in an application.
⚠️ Warning: Base artifact is not the latest one, because the latest workflow run is not done yet. This may lead to incorrect results. Try to re-run all tests to get up to date results.

Scenario	Requests/s	% of Baseline	Prev. Requests/s	Change %
GET Baseline	9,257	-	10,978	-16%
GET With Sentry	1,601	17%	1,820	-12%
GET With Sentry (error only)	5,794	63%	7,536	-23%
POST Baseline	1,164	-	1,133	+3%
POST With Sentry	558	48%	579	-4%
POST With Sentry (error only)	1,037	89%	996	+4%
MYSQL Baseline	3,215	-	3,903	-18%
MYSQL With Sentry	427	13%	482	-11%
MYSQL With Sentry (error only)	2,589	81%	3,143	-18%

View base workflow run

[Copilot]

Pull request overview

This PR updates the Pino integration to align with Sentry's mechanism type conventions by changing the mechanism type from 'pino' to 'auto.log.pino'. This brings the Pino integration into consistency with other logging integrations in the codebase (Winston, Console, Consola), which all follow the 'auto.log.<logger>' naming pattern for mechanism types.

Changes:

• Updated mechanism type in Pino integration from 'pino' to 'auto.log.pino'
• Updated all test expectations to reflect the new mechanism type

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
packages/node-core/src/integrations/pino.ts	Changed mechanism type to follow the auto.log.* convention
dev-packages/node-integration-tests/suites/pino/test.ts	Updated all test assertions to expect the new mechanism type

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