Set prometheus kolla source as git repositories

Author: seunghun1ee

etc/kayobe/kolla.yml

@@ -138,6 +138,14 @@ kolla_sources:
     type: git
     location: https://github.com/stackhpc/networking-generic-switch.git
     reference: stackhpc/{{ openstack_release }}
+  prometheus-v2-server:
+    type: git
+    location: https://github.com/prometheus/prometheus.git
+    reference: 2.54.1
+  prometheus-memcached-exporter:
+    type: git
+    location: https://github.com/prometheus/memcached_exporter.git
+    reference: 0.14.4
 
 ###############################################################################
 # Kolla image build configuration.
@@ -329,16 +337,6 @@ kolla_build_blocks:
     {% set magnum_capi_packages = ['magnum-capi-helm==1.1.0'] %}
     RUN {{ macros.install_pip(magnum_capi_packages | customizable("pip_packages")) }}
     {% endraw %}
-  prometheus_memcached_exporter_repository_version: |
-    {% raw %}
-    ARG memcached_exporter_version=0.14.4
-    ARG memcached_exporter_url=https://github.com/prometheus/memcached_exporter/releases/download/v${memcached_exporter_version}/memcached_exporter-${memcached_exporter_version}.linux-{{debian_arch}}.tar.gz
-    {% endraw %}
-  prometheus_v2_server_repository_version: |
-    {% raw %}
-    ARG prometheus_version=2.54.1
-    ARG prometheus_url=https://github.com/prometheus/prometheus/releases/download/v${prometheus_version}/prometheus-${prometheus_version}.linux-{{debian_arch}}.tar.gz
-    {% endraw %}
 
 # Dict mapping image customization variable names to their values.
 # Each variable takes the form: