CompatHelper: bump compat for MCMCChains to 7 for package docs, (keep existing compat) (#118)

Co-authored-by: CompatHelper Julia <[email protected]>

Author: github-actions[bot]

docs/Project.toml

@@ -7,9 +7,9 @@ MCMCChains = "c7f686f2-ff18-58e9-bc7b-31028e88f75d"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 
 [compat]
-Documenter = "1"
 Distributions = "0.25"
+Documenter = "1"
 LinearAlgebra = "1.6"
 LogDensityProblems = "2"
-MCMCChains = "6.0.4"
+MCMCChains = "6.0.4, 7"
 Random = "1.6"