Update amazon/aws-cli Docker tag to v2.25.8

This MR contains the following updates:

Package	Type	Update	Change
amazon/aws-cli	ironbank-docker	patch	2.25.7 -> 2.25.8
amazon/aws-cli	stage	patch	2.25.7 -> 2.25.8

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Dockerfile

@@ -4,7 +4,7 @@ ARG BASE_TAG=9.5
 
 FROM quay.io/argoproj/argocd:v2.14.8 as argocd
 
-FROM amazon/aws-cli:2.25.7 as awscli
+FROM amazon/aws-cli:2.25.8 as awscli
 
 FROM ${BASE_REGISTRY}/${BASE_IMAGE}:${BASE_TAG}