Update ComponentArrays requirement to 0.15.30 in /docs (#198)

Updates the requirements on [ComponentArrays](https://github.com/SciML/ComponentArrays.jl) to permit the latest version.
- [Release notes](https://github.com/SciML/ComponentArrays.jl/releases)
- [Changelog](https://github.com/SciML/ComponentArrays.jl/blob/main/NEWS.md)
- [Commits](SciML/ComponentArrays.jl@v0.1.0...v0.15.30)

---
updated-dependencies:
- dependency-name: ComponentArrays
  dependency-version: 0.15.30
  dependency-type: direct:production
...

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Author: dependabot[bot]

docs/Project.toml

@@ -16,6 +16,7 @@ Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 
 [compat]
 ADTypes = "1.21.0"
+ComponentArrays = "0.15.31"
 Documenter = "1.3"
 ForwardDiff = "1.3.1"
 Literate = "2.21.0"