feat: start supporting spec 2.4 by using latest generator version 1.9.5

[victormartingarcia]

Description
Bump @asyncapi/generator dependency to 1.9.5 on packages.json

Related issue(s)
Resolves #232

[sonarqubecloud]

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[derberg]

@victormartingarcia hey, I see you created PR from master that probably was not synchronized with upstream master, and this is why this PR is not only introducing changes in Dockerfile but also package files again.

Best way to solve it is to prepare your fork using https://github.com/asyncapi/community/blob/master/git-workflow.md, especially if you plan further contributions. Then create a new PR

[victormartingarcia]

Sorry about that!

I created a new PR #237 following the contribution guidelines above. I had to downgrade to node 14 for making it work on my local machine, but mysteriously it is falling on the pipeline: https://github.com/asyncapi/github-action-for-generator/runs/7893944814?check_suite_focus=true

Any ideas how to fix it?