fix: only auto-retry idempotent methods by default

[BoxBoxJason]

Description of your changes

This PR corrects a potential bug that could appear when auto retry was configured, causing potential unknown effects on server side errors on non idempotent HTTP methods. This supposes that the SonarQube API abides by the HTTP conventions.

The client can be configured to retry on all methods.

Fixes #243

I have:

• Followed the git conventional commit message format.
• Made sure all changes are covered by proper tests, reaching a coverage of at least 80% when applicable.

How has this code been tested

I have:

• Made sure make lint passes to verify that the code style is correct.
• Made sure make test passes to verify that the code is working as intended.
• Made sure make e2e passes to verify that end-to-end tests pass against a real SonarQube instance.
• Added unit tests to cover the code changes.
• Added end-to-end tests if necessary.