…510) (#569)

Co-authored-by: Saurabh Kumar <[email protected]>

* docs: clarify what load_dotenv() does in README

* docs: clarify what load_dotenv() does in README

Bumps the github-actions group with 2 updates in the / directory: [actions/checkout](https://github.com/actions/checkout) and [actions/setup-python](https://github.com/actions/setup-python).


Updates `actions/checkout` from 4 to 5
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

Updates `actions/setup-python` from 5 to 6
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: actions/setup-python
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Build with 'build'

* Declare build backend and requirements

* Move project metadata and config to pyproject.toml

- Remove --cov-config setup.cfg reference in tox.ini since setup.cfg was deleted
- Fix coverage report configuration by replacing 'include' with 'omit' to exclude tests
- Coverage now reads configuration from pyproject.toml automatically

* Support reading .env from FIFOs (Unix)

* handle FileNotFoundError in FIFO checks and add FIFO load test

---------

Co-authored-by: Sidharth Sudhir <[email protected]>