[v9] Node ANR sessions missing attrs.release

[timfish]

Description

Suspect this was caused by:

• feat(node)!: Collect request sessions via HTTP instrumentation #14658

We continually pass the session to the ANR worker where it is expected to already have attrs.release. The session can then sent from the ANR worker later.

This was picked up by the Electron e2e tests.

Unfortunately the tests I wrote in this repo for ANR didn't check the release so I only have myself to blame 🫣

sentry-javascript/dev-packages/node-integration-tests/suites/anr/test.ts

Lines 187 to 192 in 6ba9051

	.expect({
	session: {
	status: 'abnormal',
	abnormal_mechanism: 'anr_foreground',
	},
	})