CompatHelper: bump compat for ApproxFunOrthogonalPolynomials to 0.6, (keep existing compat) (#854)

Co-authored-by: CompatHelper Julia <compathelper_noreply@julialang.org>

Author: github-actions[bot]

Project.toml

@@ -25,7 +25,7 @@ AbstractFFTs = "1.0"
 ApproxFunBase = "0.7.34"
 ApproxFunBaseTest = "0.1"
 ApproxFunFourier = "0.3"
-ApproxFunOrthogonalPolynomials = "0.5"
+ApproxFunOrthogonalPolynomials = "0.5, 0.6"
 ApproxFunSingularities = "0.3"
 Aqua = "0.5"
 BandedMatrices = "0.16, 0.17"