[REQ] Upgrade OpenAPI Generator Online to Spring Boot 3

[shub-est]

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

I want to upgrade the Online module to use Spring Boot 3

Describe the solution you'd like

Upgrade the Online module to Java 17 and upgrade Spring Boot from 2.5 to 3.5

Describe alternatives you've considered

N/A

Additional context

This would also help in remediating a few CVEs

[wing328]

thanks for the PR

may I know if you've time to contribute a PR to help with the upgrade?

[shub-est]

Hi @wing328, thank you for your prompt response.

I have been working on it and here is the PR for the same