fix(deploy): !secret must be the whole header value, not inline [#734]

gitea got no auth (401: only signed in user) - secrets do not
concatenate. Secret now holds the full 'Bearer <token>' header.
Detail: https://projects.knownelement.com/issues/734

packages/deploy_pipeline.yaml

@@ -8,7 +8,7 @@
 rest:
   - resource: https://git.knownelement.com/api/v1/repos/KNEL/pfv-bms/commits?limit=1
     headers:
-      Authorization: Bearer !secret gitea_deploy_watch_token
+      Authorization: !secret gitea_auth_header
       User-Agent: pfv-bms-deploy-watch
     scan_interval: 300
     verify_ssl: true