Update caas-repo2docker to 0.8.0 (#707)

Co-authored-by: mkjpryor <[email protected]>

Author: azimuth-automation-bot[bot]

roles/azimuth_caas_operator/defaults/main.yml

@@ -406,7 +406,7 @@ azimuth_caas_repo2docker_git_url: >-
       default("https://github.com/azimuth-cloud/caas-repo2docker.git")
   }}
 # The git version for the repo2docker appliance
-azimuth_caas_repo2docker_default_git_version: 0.7.0
+azimuth_caas_repo2docker_default_git_version: 0.8.0
 azimuth_caas_repo2docker_git_version: >-
   {{
     azimuth_caas_stackhpc_repo2docker_git_version |