Imageio

Feature
* Collection of small improvements to pyav ([939](https://github.com/imageio/imageio/issues/939)) ([`b0dc210`](https://github.com/imageio/imageio/commit/b0dc21074d77894d01ce50ab2a525f214b1e265d))

Fix
* Format hint test doesn't need to establish a connection ([941](https://github.com/imageio/imageio/issues/941)) ([`b7a0f35`](https://github.com/imageio/imageio/commit/b7a0f353a1c7798ddef5eb60927921e276289e25))

Other
* Don't build pdfs on RTD ([944](https://github.com/imageio/imageio/issues/944)) ([`d200673`](https://github.com/imageio/imageio/commit/d200673503e620ac9ec1584a04e358794416e28b))

Feature
* Add audio support for ffmpeg writer ([882](https://github.com/imageio/imageio/issues/882)) ([`7f411d2`](https://github.com/imageio/imageio/commit/7f411d268cd8fab5537854814904c41465a48b9f))

Feature
* Tifffile v3 ([914](https://github.com/imageio/imageio/issues/914)) ([`4658049`](https://github.com/imageio/imageio/commit/4658049bc37b6e89796233306df393d8a51b68bd))

Other
* Pin sphinx below v6 ([928](https://github.com/imageio/imageio/issues/928)) ([`0336e58`](https://github.com/imageio/imageio/commit/0336e585236ea4eadc37122c86141fc7d51ac624))

Feature
* Add support for Python 3.11 ([920](https://github.com/imageio/imageio/issues/920)) ([`e4146a1`](https://github.com/imageio/imageio/commit/e4146a1dab2322960e908eb2b3c5fc6f385ceb9d))

Other
* Exclude py3.11 on windows ([917](https://github.com/imageio/imageio/issues/917)) ([`c57e31c`](https://github.com/imageio/imageio/commit/c57e31c90f17d32d1b0b1fe8d45a3f274776094d))
* GitHub Actions add Python 3.11 to the testing ([916](https://github.com/imageio/imageio/issues/916)) ([`8d49551`](https://github.com/imageio/imageio/commit/8d49551660773f3f095207b3c70a32a3bdee1a85))
* Add migration instructions for as_gray in new pillow plugin. ([913](https://github.com/imageio/imageio/issues/913)) ([`b3b040a`](https://github.com/imageio/imageio/commit/b3b040a79b96718cef89fcfa9149cda151763309))

Fix
* Fix silent failure when writing gray images with explicit color channel using pillow ([906](https://github.com/imageio/imageio/issues/906)) ([`a075c17`](https://github.com/imageio/imageio/commit/a075c1797821ea07fbc4c95ae4113abc820bbe1c))
* Ffmpeg supports .h264 extension ([901](https://github.com/imageio/imageio/issues/901)) ([`7571ea9`](https://github.com/imageio/imageio/commit/7571ea96cab2d726e0d2083126b459fe59ba8728))
* Avoid webcam hang on MacOS ([899](https://github.com/imageio/imageio/issues/899)) ([`019069f`](https://github.com/imageio/imageio/commit/019069f01761c46f89642928dd2a649bc9714c70))

Other
* Fix typo ([905](https://github.com/imageio/imageio/issues/905)) ([`5355f93`](https://github.com/imageio/imageio/commit/5355f934b2505f1326f6410412c7ecdb95d5b198))
* Document deprecated format_hint ([902](https://github.com/imageio/imageio/issues/902)) ([`88b7784`](https://github.com/imageio/imageio/commit/88b77849ed44da48b9fa0c2c7ae28775982cae19))