chore(deps): pin av<14 to avoid breaking changes (#495)

* chore(deps): Pin `av<14` to avoid breaking changes

Closes #494

* chore(docs): syntax

CHANGELOG.md

@@ -23,6 +23,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Allow multiple slide reverses by going backward [@PeculiarProgrammer](https://github.com/PeculiarProgrammer).
   [#488](https://github.com/jeertmans/manim-slides/pull/488)
 
+(unreleased-fixed)=
+### Fixed
+
+- Fixed PyAV issue by pinning its version to `<14`.
+  A future release will contain a fix that supports both `av>=14`
+  and `av<14`, as their syntax differ, but the former doesn't
+  provide binary wheels for Python 3.9.
+  [#494](https://github.com/jeertmans/manim-slides/pull/494)
+
 (v5.1.9)=
 ## [v5.1.9](https://github.com/jeertmans/manim-slides/compare/v5.1.8...v5.1.9)
 

pyproject.toml

@@ -17,7 +17,7 @@ classifiers = [
   "Topic :: Scientific/Engineering",
 ]
 dependencies = [
-  "av>=9.0.0",
+  "av>=9.0.0,<14",
   "beautifulsoup4>=4.12.3",
   "click>=8.1.3",
   "click-default-group>=1.2.2",

uv.lock

@@ -1335,7 +1335,7 @@ dev = [
 
 [package.metadata]
 requires-dist = [
-    { name = "av", specifier = ">=9.0.0" },
+    { name = "av", specifier = ">=9.0.0,<14" },
     { name = "beautifulsoup4", specifier = ">=4.12.3" },
     { name = "click", specifier = ">=8.1.3" },
     { name = "click-default-group", specifier = ">=1.2.2" },