Run openqa-maintenance on botmaster as well

So far ran on maintenance vm

gocd/openqa.gocd.yaml

@@ -0,0 +1,21 @@
+format_version: 3
+pipelines:
+  openSUSE.QA.Maint:
+    group: openSUSE.Checkers
+    lock_behavior: unlockWhenFinished
+    environment_variables:
+      OSC_CONFIG: /home/go/config/oscrc-openqa-maintenance
+    materials:
+      script:
+        git: https://github.com/openSUSE/openSUSE-release-tools.git
+    timer:
+      spec: 0 */10 0 ? * *
+      only_on_changes: false
+    stages:
+    - Run:
+        approval: manual
+        resources:
+          - staging-bot
+        tasks:
+          - script: |-
+             ./openqa-maintenance.py --group qam-openqa --review-mode=accept-onpass --debug --openqa https://openqa.opensuse.org  --apiurl https://api.opensuse.org review

openqa-maintenance.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 
 from oqamaint.cli import CommandLineInterface