chore(deps): update ghcr.io/containerbase/base docker tag to v8

Dockerfile.asdf

 # This image is used by asdf to validate asdf setup scripts in asdf-tool-versions.yml
-FROM ghcr.io/containerbase/base:7.8.6
+FROM ghcr.io/containerbase/base:8.0.4
 ARG GL_COMMON_RENOVATE_GIT_VERSION
 ARG GL_COMMON_RENOVATE_PYTHON_VERSION

Dockerfile.renovate

@@ -5,7 +5,7 @@ FROM docker.io/mikefarah/yq:${GL_COMMON_RENOVATE_YQ_VERSION} as yq
 FROM registry.gitlab.com/gitlab-com/gl-infra/jsonnet-tool:v${GL_COMMON_RENOVATE_JSONNET_TOOL_VERSION} AS jsonnet-tool
 # This image is used by renovate
-FROM ghcr.io/containerbase/base:7.8.6
+FROM ghcr.io/containerbase/base:8.0.4
 ARG GL_COMMON_RENOVATE_GIT_VERSION
 ARG GL_COMMON_RENOVATE_GOLANG_VERSION
 ARG GL_COMMON_RENOVATE_JB_VERSION