Fix locators for firefox and opera.

Author: rosolko

WebDriverManager/DriverConfigs/Impl/FirefoxConfig.cs

@@ -34,7 +34,7 @@ public virtual string GetLatestVersion()
                 var htmlCode = client.DownloadString("https://github.com/mozilla/geckodriver/releases");
                 var parser = new HtmlParser(Configuration.Default.WithDefaultLoader());
                 var document = parser.Parse(htmlCode);
-                var version = document.QuerySelectorAll("[class='release-title'] a")
+                var version = document.QuerySelectorAll("[class~='release-title'] a")
                     .Select(element => element.TextContent)
                     .FirstOrDefault()
                     ?.Remove(0, 1);

WebDriverManager/DriverConfigs/Impl/OperaConfig.cs

@@ -34,7 +34,7 @@ public virtual string GetLatestVersion()
                 var htmlCode = client.DownloadString("https://github.com/operasoftware/operachromiumdriver/releases");
                 var parser = new HtmlParser(Configuration.Default.WithDefaultLoader());
                 var document = parser.Parse(htmlCode);
-                var version = document.QuerySelectorAll("[class='release-title'] a")
+                var version = document.QuerySelectorAll("[class~='release-title'] a")
                     .Select(element => element.TextContent)
                     .FirstOrDefault();
                 return version;