Bump prometheus.prometheus to 0.19.0 (#246)

Co-authored-by: mkjpryor <642657+mkjpryor@users.noreply.github.com>

requirements.yml

@@ -13,7 +13,7 @@ collections:
   - name: containers.podman
     version: 1.15.4
   - name: prometheus.prometheus
-    version: 0.17.1
+    version: 0.19.0
   - name: https://github.com/azimuth-cloud/ansible-collection-image-utils
     type: git
     version: 0.2.0