CompatHelper: bump compat for ForwardDiff in [weakdeps] to 1, (keep existing compat) (#547)

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

Author: github-actions[bot]

Project.toml

@@ -41,7 +41,7 @@ CPUSummary = "0.1.3 - 0.1.8, 0.1.11, 0.2.1"
 ChainRulesCore = "1"
 CloseOpenIntervals = "0.1.10"
 DocStringExtensions = "0.8, 0.9"
-ForwardDiff = "0.9, 0.10"
+ForwardDiff = "0.9, 0.10, 1"
 HostCPUFeatures = "0.1.10"
 IfElse = "0.1"
 LayoutPointers = "0.1.11"