fix copilot review comments

Author: arturcic

src/GitVersion.App/ArgumentParserExtensions.cs

@@ -30,7 +30,7 @@ public bool IsValidPath()
                 {
                     _ = FileSystemHelper.Path.GetFullPath(value);
                 }
-                catch
+                catch (Exception)
                 {
                     return false;
                 }

src/GitVersion.Core.Tests/MergeMessageTests.cs

@@ -35,10 +35,10 @@ public void EmptyTagPrefix(string? prefix)
     {
         // Arrange
         const string message = "Updated some code.";
-        var configurationBuilder = GitHubFlowConfigurationBuilder.New.WithTagPrefixPattern(prefix);
+        var configBuilder = GitHubFlowConfigurationBuilder.New.WithTagPrefixPattern(prefix);
 
         // Act
-        var sut = new MergeMessage(message, configurationBuilder.Build());
+        var sut = new MergeMessage(message, configBuilder.Build());
 
         // Assert
         sut.TargetBranch.ShouldBeNull();