Update ghcr.io/fluxcd/flux-manifests Docker tag to v2.7.3

[renovate]

This PR contains the following updates:

Package	Update	Change
ghcr.io/fluxcd/flux-manifests	patch	v2.7.2 -> v2.7.3

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Release Notes

fluxcd/flux2 (ghcr.io/fluxcd/flux-manifests)

v2.7.3

Compare Source

Highlights

Flux v2.7.3 is a patch release that comes with various fixes. 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:

• Restore SOCKS5 proxy support in all controllers
• Fix status reporting of HelmReleases with RetryOnFailure strategy
• Automated retries for ImagePolicies when no image tags are found in the database
• Fix alerting for Telegram's message_thread_id
• Allow running kustomize-controller and helm-controller on the same loopback interface as source-watcher

⚠️ Note that signature verification for OCI artifacts in source-controller is not compatible with Cosign v3. Users are advised to use Cosign v2.6 for signing Flux OCI artifacts and Helm charts, until support for Cosign v3 is added in Flux v2.8.

Components changelog

• source-controller v1.7.3
• kustomize-controller v1.7.2
• notification-controller v1.7.4
• helm-controller v1.4.3
• image-reflector-controller v1.0.3
• image-automation-controller v1.0.3

CLI changelog

• [release/v2.7.x] Pin cosign to v2.6.1 by @​fluxcdbot in #​5595
• [release/v2.7.x] Update toolkit components by @​fluxcdbot in #​5605
• [release/v2.7.x] fix: return accepted values for flags when calling Values.Type() by @​fluxcdbot in #​5606

Full Changelog: fluxcd/flux2@v2.7.2...v2.7.3

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