Update Julia version requirement to 1.10.8

Author: penelopeysm

getting-started/index.qmd

@@ -17,7 +17,7 @@ Pkg.instantiate();
 
 To use Turing, you need to install Julia first and then install Turing.
 
-You will need to install Julia 1.10 or greater, which you can get from [the official Julia website](http://julialang.org/downloads/).
+You will need to install Julia 1.10.8 or greater, which you can get from [the official Julia website](http://julialang.org/downloads/).
 
 Turing is officially registered in the [Julia General package registry](https://github.com/JuliaRegistries/General), which means that you can install a stable version of Turing by running the following in the Julia REPL: