Limit to 1 open PR at a time until dependabot/dependabot-core#10415 is fixed (#1061)

Signed-off-by: Gregor Zeitlinger <[email protected]>

Author: zeitlinger

.github/dependabot.yml

@@ -5,6 +5,8 @@ updates:
     schedule:
       interval: weekly
   - package-ecosystem: maven
+    open-pull-requests-limit: 1 # Limit to 1 open PR at a time until https://github.com/dependabot/dependabot-core/issues/10415 is fixed
+    # excluding simpleclient_archive from the update is not possible, only includes are supported
     directories:
       - prometheus-metrics-bom
       - prometheus-metrics-core