CompatHelper: bump compat for OptimizationBase to 4 for package docs, (keep existing compat)

Author: CompatHelper Julia

docs/Project.toml

@@ -68,7 +68,7 @@ NLPModelsTest = "0.10"
 NLopt = "0.6, 1"
 Optimization = "4, 5"
 OptimizationBBO = "0.4"
-OptimizationBase = "2, 3"
+OptimizationBase = "2, 3, 4"
 OptimizationCMAEvolutionStrategy = "0.3"
 OptimizationEvolutionary = "0.4"
 OptimizationGCMAES = "0.3"