Update dependency fluent/fluent-bit to v3.1.9

This MR contains the following updates:

Package	Type	Update	Change
fluent/fluent-bit		patch	3.1.8 -> 3.1.9
fluent/fluent-bit	ironbank-github	patch	v3.1.8 -> 3.1.9

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Release Notes

fluent/fluent-bit (fluent/fluent-bit)

v3.1.9: Fluent Bit 3.1.9

Compare Source

https://fluentbit.io/announcements/v3.1.9/

What's Changed

• in_calyptia_fleet: fix 'unable to find fleet by name'. by @​pwhelan in https://github.com/fluent/fluent-bit/pull/9412
• 3.1: backport fixes 2024-09-26 by @​edsiper in https://github.com/fluent/fluent-bit/pull/9433
• reload: do not call flb_stop when flb_start fails and fix crash on RHEL by @​pwhelan in https://github.com/fluent/fluent-bit/pull/9435
• upstream: Improve error message for misconfigured HTTP_PROXY variable - Backport to 3.1 by @​lecaros in https://github.com/fluent/fluent-bit/pull/9438

Full Changelog: https://github.com/fluent/fluent-bit/compare/v3.1.8...v3.1.9

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