Potential fix for pull request finding 'Missed opportunity to use Where'

Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>

Author: YunchuWang

src/Analyzers/Activities/FunctionNotFoundAnalyzer.cs

@@ -396,12 +396,9 @@ static bool IsSystemAssembly(IAssemblySymbol assembly)
             return true;
         }
 
-        foreach (string prefix in SystemAssemblyPrefixes)
+        if (SystemAssemblyPrefixes.Any(prefix => assemblyName.StartsWith(prefix, StringComparison.Ordinal)))
         {
-            if (assemblyName.StartsWith(prefix, StringComparison.Ordinal))
-            {
-                return true;
-            }
+            return true;
         }
 
         return false;