Fix false positives on Coverage*.cs files (#3454)

I added this .gitignore to a project that included a file named CoverageSearchModel.cs, and the file was wrongly ignored.  This change fixes the incorrect use of the range operator on the Coverlet rules.

VisualStudio.gitignore

@@ -142,7 +142,9 @@ _TeamCity*
 !.axoCover/settings.json
 
 # Coverlet is a free, cross platform Code Coverage Tool
-coverage*[.json, .xml, .info]
+coverage*.json
+coverage*.xml
+coverage*.info
 
 # Visual Studio code coverage results
 *.coverage