Update Rust crate sentry to 0.31.8

[noelbot]

This PR contains the following updates:

Package	Type	Update	Change
sentry (source)	dependencies	patch	0.31.7 -> 0.31.8

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Release Notes

getsentry/sentry-rust (sentry)

v0.31.8

Compare Source

Various fixes & improvements

• MonitorSchedule constructor that validates crontab syntax (#​625) by @​szokeasaurusrex
• fix(docs): Fix some doc errors that slipped in (#​623) by @​flub
• docs(tower): Mention how to enable http feature from sentry crate (#​622) by @​flub
• build(deps): bump rustix from 0.37.23 to 0.37.25 (#​619) by @​dependabot

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