Update RFC 0008 and RFC 0009 milestones

Signed-off-by: Matheus Pimenta <matheuscscp@gmail.com>

rfcs/0008-custom-event-metadata-from-annotations/README.md

@@ -1,6 +1,6 @@
 # RFC-0008 Custom Event Metadata from Annotations
 
-**Status:** implementable
+**Status:** implemented
 
 <!--
 Status represents the current state of the RFC.
@@ -9,7 +9,7 @@ Must be one of `provisional`, `implementable`, `implemented`, `deferred`, `rejec
 
 **Creation date:** 2024-05-23
 
-**Last update:** 2024-12-17
+**Last update:** 2025-02-22
 
 ## Summary
 
@@ -241,6 +241,8 @@ To disable the feature, do not use `event.toolkit.fluxcd.io/` as a prefix in Flu
 
 ## Implementation History
 
+* RFC implemented and generally available in Flux v2.5.
+
 <!--
 Major milestones in the lifecycle of the RFC such as:
 - The first Flux release where an initial version of the RFC was available.

rfcs/0009-custom-health-checks/README.md

@@ -1,10 +1,10 @@
 # RFC-0009 Custom Health Checks for Kustomization using Common Expression Language (CEL)
 
-**Status:** implementable
+**Status:** implemented
 
 **Creation date:** 2024-01-05
 
-**Last update:** 2025-01-23
+**Last update:** 2025-02-22
 
 ## Summary
 
@@ -329,3 +329,4 @@ We will implement a `CEL` environment that will use the Kubernetes CEL library t
 
 ## Implementation History
 
+* RFC implemented and generally available in Flux v2.5.