refactor: use statics.ietf.org for all statics

* refactor: Factor out helper from fetch_meeting_attendance.py

* feat: Define fetch_meeting_attendance_task task

Equivalent to the fetch_meeting_attendance management command

* chore: Disable fetch_meeting_attendance in bin/daily

* feat: Log errors in fetch_meeting_attendance_task

* feat: Enable a result backend for celery

Ignore results by default, but enable the backend so we
can manage tasks

* feat: Define daily task in ietf.utils.tasks

* refactor: Make bin/send-review-reminders into a task

* refactor: Make bin/send-scheduled-mail into a task

* chore: Update copyright years

* refactor: Make bin/rfc-editor-index-updates into a task

* refactor: Accept date type in rfc index update fn

* chore: Update comment

* fix: Annotate param as Optional

* fix: Revert treating skip_older_than_date as str

Misunderstood the comment, "fixed" a non-bug. Oops.

* feat: mgmt command to create periodic tasks

* feat: add summary of tasks to mgmt cmd

* style: black

* fix: Remove debug statements

* feat: Enable/disable tasks

* chore: Disable periodic tasks by default

* chore: Revert changes to daily and every15m

* fix: Call intended function

* chore: Add task descriptions

* fix: Copy authors from draft when RFC is published

* feat: Mgmt command to set RFC authors from draft

* feat: Better event messages

* fix: Check that rfc came from draft first

* test: Add mgmt command test

* test: Cannot force-reset draftless RFC

* test: Test rfc_editor_index_update_task

* chore: Add docstring to test

* fix: Reuse stats instead of fetching twice

* test: Test fetch_meeting_attendance_task

* chore: Remove outdated tasks

* Revert "chore: Add docstring to test"

This reverts commit 0395410.

* Revert "test: Test rfc_editor_index_update_task"

This reverts commit 4dd9dd1.

* test: Test rfc_editor_index_update_task

This time without reformatting the entire file...

* chore: Remove accidentally committed fragment

* test: Annotate function to satisfy mypy

* chore: Remove unused imports

* test: Test send_review_reminders_task

* refactor: Move send_scheduled_mail_task to message app

* chore: Remove unused import

* test: Add Message/SendQueue factories

* test: Test send_scheduled_mail_task

* test: Reset mocks before reuse

* test: Cover error conditions

* test: Return non-empty change set

* test: Test SMTPException handling

* test: Test fetch_attendance_from_meetings()

* test: Test RuntimeError handling

* test: RFC index sync should populate authors

* refactor: change references from User to Person (#5821)

* refactor: Change CommunityList reference from User to Person

* refactor: Convert more user references to person

* refactor: Change augment_docs_and_user_with_user_info to person

* refactor: Change Nomination and Feedback references from User to Person

* refactor: Change a few test case function signatures to be more pythonic

* refactor: Harmonize how profile and photo views look up email_or_name

* refactor: Rework community views to operate on Person instead of User (#5859)

* test: Update tests to try all of the person's emails and aliases

* fix: Recode a test case to avoid an exception if there's Unicode in the URL

This only happens using the form-filling and submission feature of
WebTest, which is only used in this one test case, so just it rip out.

* test: Add duplicate-person tests

* fix: If there are multiple matching users, prefer the logged-in one.

* chore: We no longer use WebTest, so don't include it.

* fix: Address review comments

* fix: case-insensitive person name or email matching (#6096)

* chore: Renumber migrations

* fix: Update merged code so tests pass (#6887)

* fix: Use refactored method

* fix: Don't assume user has person

* fix: Use new view param name

* chore: Drop community lists w/o person; cleanup (#6896)

* fix: Don't assume user has person

* fix: user->person in update_community_list_index.py

* feat: Remove CommunityLists without Person

* refactor: Speed up nomcom migrations

---------

Co-authored-by: Paul Selkirk <paul@painless-security.com>
Co-authored-by: Jennifer Richards <jennifer@staff.ietf.org>

ci: merge main to release (PR #6932)