- Adds a new command `cargo_nextest` to run tests using the nextest test runner.
- Introduces a `test_runner` parameter to the `common_tests` job, allowing users to choose between `test` and `nextest`.
- Adds a `nextest_profile` parameter to the `common_tests` job to specify the nextest profile to use.
- Configures the CI workflow to use nextest for running tests.
- Adds junit report output for nextest
- create .circleci/config.yml for CI/CD pipeline setup
- define parameters for fingerprint, rust version, and flags
- include workflows for commit checks, validation, success, and release
- utilize toolkit orbs for job execution and management
