[FEAT] Switch to V2 endpoints for some endpoints (#1281)

[Mildophin]

Description

Switch to V2 endpoints for the following endpoints:

• PUT cancel jobs
• POST add jobs
• PUT cancel batch
• PUT complete batch
• PUT cancel job

The V2 remove the 'results' field in the response, field present in the V1 of these endpoints.

Checklist

• The title of the PR follows the right format: [{Label}] {Short Message}. Label examples: IMPROVEMENT, FIX, REFACTORING... Short message is about what your PR changes.

Versioning (PASQAL developers only)

• Update the version of pasqal-cloud in _version.py following the changes in your PR and by using semantic versioning.

Documentation

• Update CHANGELOG.md with a description explaining briefly the changes to the users.

Tests

• Unit tests have been added or adjusted.
• Tests were run locally.

Internal tests pipeline (PASQAL developers only)

• Update and run the internal tests while targeting the branch of this PR.
  If your PR hasn't changed any functionality, it still needs to be validated against internal tests.

After updating the version (PASQAL developers only)

• Open a PR on the internal tests that updates the version used for the pasqal-cloud backward compatibility tests.

[Augustinio]

Technically if we remove a key from the response, doesn't it constitute a breaking change? If so the minor should be bumped.

[Mildophin]

Technically if we remove a key from the response, doesn't it constitute a breaking change? If so the minor should be bumped.

Indeed it is, just realised it, I will bump it to 0.13.0