chore(deps): update fluxcd/flux2 action to v2.8.6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
fluxcd/flux2	action	patch	v2.8.3 → v2.8.6

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Release Notes

fluxcd/flux2 (fluxcd/flux2)

v2.8.6

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v2.8.5

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Highlights

Flux v2.8.5 is a patch release that includes bug fixes and improvements across kustomize-controller, source-controller, and notification-controller. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

• Fix a race condition where a cancelled reconciliation could leave stale data in the cache, causing Kustomizations to get stuck (kustomize-controller)
• Fix Azure Blob prefix option not being passed to the storage client (source-controller)

Improvements:

• Improve error message for encrypted SSH keys without password (source-controller)
• Add optional email and audience fields to the GCR Receiver for tighter verification (notification-controller)
• Add provider manifest example for Azure Event Hub managed identity authentication (notification-controller)

Components changelog

• kustomize-controller v1.8.3
• source-controller v1.8.2
• notification-controller v1.8.3

CLI changelog

• Update toolkit components by @​fluxcdbot in #​5822

Full Changelog: fluxcd/flux2@v2.8.4...v2.8.5

v2.8.4

Compare Source

Highlights

Flux v2.8.4 is a patch release that includes fixes for the Flux CLI. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

• Fix flux build ks and flux diff ks on Windows
• Fix --source flag validation in create kustomization command

CLI changelog

• Update fluxcd/pkg dependencies by @​fluxcdbot in #​5796
• [release/v2.8.x] fix: validate --source flag in create kustomization command by @​fluxcdbot in #​5799

Full Changelog: fluxcd/flux2@v2.8.3...v2.8.4

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