Update Plots requirement to 1.41.6 in /docs (#17)

Updates the requirements on [Plots](https://github.com/JuliaPlots/Plots.jl) to permit the latest version.
- [Release notes](https://github.com/JuliaPlots/Plots.jl/releases)
- [Changelog](https://github.com/JuliaPlots/Plots.jl/blob/v2/NEWS.md)
- [Commits](JuliaPlots/Plots.jl@Plots-v1.41.5+docs...Plots-v1.41.6)

---
updated-dependencies:
- dependency-name: Plots
  dependency-version: 1.41.6
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/Project.toml

@@ -6,3 +6,6 @@ Literate = "98b081ad-f1c9-55d3-8b20-4c87d4299306"
 Flux = "587475ba-b771-5e3f-ad9e-33799f191a9c"
 MLUtils = "f1d291b0-491e-4a28-83b9-f70985020b54"
 Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
+
+[compat]
+Plots = "1.41.6"