CompatHelper: add new compat entry for Compat at version 3 for package test, (keep existing compat) (#418)

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

Author: github-actions[bot]

test/Project.toml

@@ -18,6 +18,7 @@ Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 
 [compat]
 AxisArrays = "0.4.3"
+Compat = "3"
 Distances = "= 0.10.0, = 0.10.1, = 0.10.2, = 0.10.3, = 0.10.4"
 Documenter = "0.25, 0.26, 0.27"
 FiniteDifferences = "0.10.8, 0.11, 0.12"