infra: it looks like our .asf.yaml is broken

[SemyonSinchenko]

Describe the bug, including details regarding any error messages, version, and platform.

An error occurred while processing the github feature in .asf.yaml: 

while parsing a mapping
unexpected key not in schema 'required_linear_history'
  in "incubator-graphar.git/.asf.yaml::github", line 24, column 1:
          required_linear_history: ' ... 
    ^ (line: 24)
An error occurred while processing the github feature in .asf.yaml: 

while parsing a mapping
unexpected key not in schema 'required_linear_history'
  in "incubator-graphar.git/.asf.yaml::github", line 24, column 1:
          required_linear_history: ' ... 
    ^ (line: 24)

---
With regards, ASF Infra.
For further information, please see the .asf.yaml documentation at:
https://github.com/apache/infrastructure-asfyaml/blob/main/README.md

---
With regards, ASF Infra.
For further information, please see the .asf.yaml documentation at:
https://github.com/apache/infrastructure-asfyaml/blob/main/README.md

Component(s)

Continuous Integration