Removes expected part of EXPECTED_ERRORS with a variety of changes.
- In many placed in the code, "expected" was used to mean
"ignored and expected", and all such instances are renamed to "ignored".
- The setting ``EXPECTED_ERRORS`` is renamed to ``IGNORED_ERRORS``,
which better matches how it was being used in the first place.
- The setting ``EXPECTED_ERRORS[REASON_EXPECTED]`` is renamed to ``IGNORED_ERRORS[REASON_IGNORED]``.
- The setting toggle ``EXPECTED_ERRORS[IS_IGNORED]`` is removed,
because it will now always be True.
- The how-to will is renamed to how_tos/logging-and-monitoring-ignored-errors.rst.
See 0002-logging-and-monitoring-expected-errors-removed.rst for more details.
Implements DEPR: https://github.com/openedx/edx-platform/issues/32405
**BREAKING CHANGE:** The rename of the setting ``EXPECTED_ERRORS`` to
``IGNORED_ERRORS``, and ``REASON_EXPECTED`` to ``REASON_IGNORED``,
was implemented without backward compatibility. Simply copy the old settings
with the new name as an expand phase before deleting the old names in the
contract phase.
Adds logging and monitoring capabilities for expected
errors. See the ADR and how-to documentation for
details of how to configure and use the EXPECTED_ERRORS
setting and new monitoring and logging.
ARCHBOM-1708
Co-authored-by: Tim McCormack <tmccormack@edx.org>
