chore(deps): update Surrogates requirement to 7.5.1 in /docs

Updates the requirements on [Surrogates](https://github.com/SciML/Surrogates.jl) to permit the latest version.
- [Release notes](https://github.com/SciML/Surrogates.jl/releases)
- [Commits](https://github.com/SciML/Surrogates.jl/commits)

---
updated-dependencies:
- dependency-name: Surrogates
  dependency-version: 7.5.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

docs/Project.toml

@@ -23,4 +23,5 @@ Makie = "0.24"
 PairPlots = "3"
 Plots = "1.41"
 StatsPlots = "0.15"
+Surrogates = "7.5.1"
 UnicodePlots = "3"