Avoids building a list in memory unnecessarily. Generator expressions
are evaluated lazily.

The lint stage of CI is already handled by pre-commit.ci. With it, the
extra run in GitHub action is redundant and only consumes time and
resources unnecessarily.

pre-commit.ci is also faster to respond with results.

* Simplify black configuration to be closer to upstream defaults

Avoid extra configuration by simply going with Black defaults. This
allows removing some configuration options, thus simplifying the overall
configuration.

It also makes the code style closer to community conventions. As more
projects adopt black formatting, more code will look like the black
defaults.

Further, the default 88 tends to create more readable lines, IMO. The
black rationale is located at:
https://black.readthedocs.io/en/stable/the_black_code_style.html#line-length

* Update tests/test_api_jws.py

Co-authored-by: José Padilla <jpadilla@webapplicate.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update tests/test_api_jws.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Co-authored-by: José Padilla <jpadilla@webapplicate.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

- Fixed doctest which included incorrect output.
- Use intersphinx to allow linking to Python JSONEncoder class.
- Fix param types after previous str/bytes cleanups.
- Fix param syntax to avoid vertical bar.

The command `tox -e docs` now passes.

* Fix tox "manifest" environment to pass

The command `tox -e manifest` now passes.

Added missing files to the sdist:

- .pre-commit-config.yaml
- CODE_OF_CONDUCT.md
- jwt/py.typed
- docs/

Alphabetized MANIFEST.in

Moved .flake8 to setup.cfg to avoid the need to include yet another file
to MANIFEST.in.

Exclude codecov.yml. This is for CI only.

* Move check-manifest to a pre-commit hook

ModuleNotFoundError was introduced in Python 3. It is raised when the
module does not exist. On the other hand, ImportError is raised during
any import failure. For example, a syntax error or other runtime error.

Using ModuleNotFoundError means that errors unrelated to a missing
package will be propagated to the user. PyJWT doesn't know how to handle
these.

This also allows more functions to always be available for import

int.from_bytes() has been available since Python 3.2. Using it avoids
string formatting.