Drop support for Julia 1.5 and earlier

DilumAluthge · web-flow · commit ad58c91ea777 · 2025-03-23T20:45:13.000-04:00
diff --git a/Project.toml b/Project.toml
@@ -13,4 +13,4 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 test = ["Test"]
 
 [compat]
-julia = "1.0"
+julia = "1.6"
