CompatHelper: add new compat entry for Sparspak at version 0.3, (keep existing compat)

CompatHelper Julia · CompatHelper Julia · commit 512289eaad1e · 2022-12-13T00:12:25.000Z
diff --git a/Project.toml b/Project.toml
@@ -39,6 +39,7 @@ Reexport = "1"
 SciMLBase = "1.68"
 Setfield = "0.7, 0.8, 1"
 SnoopPrecompile = "1"
+Sparspak = "0.3"
 UnPack = "1"
 julia = "1.6"
 
