fix: pcall-guard C_ClassInfo.GetSpecInfo to silence CoA spec API spam

On the current CoA Beta client, C_ClassInfo.GetAllSpecs(class) returns
items that GetSpecInfo cannot accept as arg #2, throwing
'Script::ValidateInput Invalid argument type at index 2. Expected string.'
~150 times per session across DF, LibOpenRaid, gears, profiles, etc.

Wrap every unguarded GetSpecInfo(class, spec) site in pcall + nil-guard
so the iteration skips bad entries silently. Matches the pattern already
used by CoaExporter and prevents Error.txt flooding.

functions/spells.lua

@@ -18,9 +18,11 @@ do
 	for _, class in ipairs(CLASS_SORT_ORDER) do
 		local specs = C_ClassInfo.GetAllSpecs(class)
 		for index, spec in ipairs(specs) do
-			local specInfo = C_ClassInfo.GetSpecInfo(class, spec)
+			local ok, specInfo = pcall(C_ClassInfo.GetSpecInfo, class, spec)
+			if ok and specInfo then
 			_detalhes.SpecIDToClass[specInfo.ID] = class
 		end
+			end
 	end