make workdir configurable

templates/buildbot/master.cfg.j2

@@ -115,6 +115,7 @@ for builders_config_file_path in builders_config_file_paths:
           repourl=repo['url'],
           mode='incremental',
           branch=repo["branch"],
+          workdir=repo['workdir'],
           progress=True,
         ))
       elif repo['type'] == 'gitea':
@@ -122,6 +123,7 @@ for builders_config_file_path in builders_config_file_paths:
           repourl=repo['url'],
           mode='incremental',
           branch=repo["branch"],
+          workdir=repo['workdir'],
           progress=True,
         ))
 
@@ -129,6 +131,7 @@ for builders_config_file_path in builders_config_file_paths:
         factory.addStep(steps.ShellCommand(
           name=cmd['name'],
           command=cmd['command'],
+          workdir=cmd['workdir'],
         ))
 
       c['schedulers'].append(schedulers.SingleBranchScheduler(