Bump releases from 1.6.3 to 2.0.0

[dependabot]

Bumps releases from 1.6.3 to 2.0.0.

Changelog

Sourced from releases's changelog.

========= Changelog

• :release:2.0.0 <2022-12-31>

• 🐛- major Changelog transformation sometimes failed to occur when running under a 'single HTML file' Sphinx builder (eg singlehtml), which resulted in 'unknown node' errors. This has been fixed.

• :support:- Administrivia overhaul: enhanced README, packaging metadata cleaned up/expanded, CI moved to Circle-CI, renamed dev branch to main, and more besides.

• :support:- The releases_release_uri/releases_issue_uri settings now allow modern (.format/f-strings) string formatting, in addition to the old %s-based interpolation.

• :support:- Dropped support for Python 2.7, Python 3.4, and Python 3.5, to align slightly better with upstream (and ecosystem) EOLs.

• 🐛- major Don't make tmpdirs in releases.util.make_app when being given explicit directory args.

• :support:- Dropped support for Sphinx <4. We tried to support 1.8+, but too many transitive dependencies have clearly "moved on" and cause various cells in the test matrix to fail hard.

  .. warning:: This change is backwards incompatible if your Sphinx docs don't already work on recent Sphinx versions.

• :support:- Migrated the test suite to use pytest-relaxed (and thus pytest) instead of spec.

• :release:1.6.3 <2020-01-10>

• :support:87 backported (via :issue:88) Our upper Sphinx version limit was mostly defensive and at this point is just too old to even build on ReadTheDocs successfully. Removed it for the time being. Thanks to José Sánchez-Gallego for the nudge and the patch.

• :release:1.6.2 <2020-01-10>

• :release:1.5.2 <2020-01-10>

• :support:84 backported Pin us to semantic-version<2.7 as they changed their APIs (...) in that version in a way that breaks us. We do not need anything they've added recently, so the conservative response is to just pin until we truly need to upgrade. Thanks to everyone who reported and submitted workarounds for this.

• :release:1.6.1 <2018-07-02>

• :release:1.5.1 <2018-07-02>

• :support:73 backported (via :issue:77) Add support for Sphinx 1.7.x (while retaining support for previous versions of Sphinx). Thanks to Miro Hrončok for the patch.

• :release:1.6.0 <2018-06-20>

• :feature:75 Update releases.util.parse_changelog so it hands kwargs into releases.util.make_app, which in turn now accepts a load_extensions argument triggering loading of one's configured extensions. This is only of interest if you're using parse_changelog

... (truncated)

Commits

• cf82488 Cut 2.0.0
• 046bf03 Update dev-requirements for soon-to-be-released co-dependencies
• b18cd60 Fix singlehtml builder explosions, most of the time
• 1b39110 Tests/changelog proving singlehtml build fails
• 0a7075d NEW DEV TOY FOUND
• bc92782 Allow overriding sphinx-build flags directly
• 6145787 Temporarily pin my other projects-as-deps to main branch
• d74cc17 Changelog re: admin overhaul
• 1d518ea whitespace
• 80e1d49 Use modern pytest setup methods
• Additional commits viewable in compare view

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[dependabot]

Superseded by #31.