Fix: Severity of CODE001

Author: AnnaSasDev

src/CodeOfChaos.Extensions.Analyzers/AnalyzerReleases.Shipped.md

@@ -4,4 +4,4 @@
 
  Rule ID | Category | Severity | Notes                  
 ---------|----------|----------|------------------------
- CODE001 | Usage    | Warning  | GuidValidationAnalyzer 
+ CODE001 | Usage    | Error    | GuidValidationAnalyzer 

src/CodeOfChaos.Extensions.Analyzers/GuidValidationAnalyzer.cs

@@ -19,7 +19,7 @@ public class GuidValidationAnalyzer : DiagnosticAnalyzer {
         "Invalid GUID in .ToGuid() call",
         "The string '{0}' is not a valid GUID and will raise an exception",
         "Usage",
-        DiagnosticSeverity.Warning,
+        DiagnosticSeverity.Error,
         true,
         "Checks if the string used with the ToGuid() method is a valid GUID.");