v4.15.0

What's Changed

• Update local and test dependencies by @willemarcel in #583
• Avoid doing an extra query to test ordering in changesets endpoint by @willemarcel in #594
• Add tag_changes field to Changeset and allow filtering by it by @willemarcel in #597
• Bump django from 2.2.25 to 2.2.27 in /requirements by @dependabot in #591
• Bump flake8 from 3.9.2 to 4.0.1 by @dependabot in #582
• Bump django from 2.2.27 to 2.2.28 in /requirements by @dependabot in #603
• Bump osmcha version to 0.8.6 by @willemarcel in #605
• Bump sqlparse from 0.4.1 to 0.4.2 in /requirements by @dependabot in #557
• Bump sphinx from 4.1.1 to 4.3.2 by @dependabot in #573
• Bump django from 2.2.24 to 2.2.25 in /requirements by @dependabot in #579
• Bump django-model-utils from 4.1.1 to 4.2.0 by @dependabot in #581

Full Changelog: v4.14.0...v4.15.0