Automate PR review process

[kencho51]

User story

As a developer
I want to automate aspect of PR reviewing
So that can be approved and merged more quickly

Acceptance criteria

Given a new PR is created
When it is made ready for review
Then the the coding style is automatically checked
And the presence of a CHANGELOG entry is automatically checked
And spellechecking of changed documentation is automatically checked

Is your feature request related to a problem? Please describe.

Currently, reviewing PR takes long time to completed, which some works (spelling, coding style, change log entry, etc) could have been done automatically.

Describe the solution you'd like
A clear and concise description of what you want to happen.

Create a job in gitlab runner/github action to check:

• spelling
• coding style
• change log updated or not
• etc

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.