Simplify new statements (#313)

src/Cake.Issues/BaseRuleUrlResolver.cs

@@ -11,7 +11,7 @@
     public abstract class BaseRuleUrlResolver<T>
         where T : BaseRuleDescription, new()
     {
-        private readonly List<Tuple<Func<T, Uri>, int>> registeredUrlResolver = new List<Tuple<Func<T, Uri>, int>>();
+        private readonly List<Tuple<Func<T, Uri>, int>> registeredUrlResolver = new ();
 
         /// <summary>
         /// Registers a new resolver with default priority of <c>0</c>.

src/Cake.Issues/IssueBuilder.cs

@@ -29,7 +29,7 @@ public class IssueBuilder
         private Uri ruleUrl;
         private string run;
         private FileLinkSettings fileLinkSettings;
-        private Dictionary<string, string> additionalInformation = new Dictionary<string, string>();
+        private Dictionary<string, string> additionalInformation = new ();
 
         /// <summary>
         /// Initializes a new instance of the <see cref="IssueBuilder"/> class.

src/Cake.Issues/IssuesReader.cs

@@ -10,7 +10,7 @@
     public class IssuesReader
     {
         private readonly ICakeLog log;
-        private readonly List<IIssueProvider> issueProviders = new List<IIssueProvider>();
+        private readonly List<IIssueProvider> issueProviders = new ();
         private readonly IReadIssuesSettings settings;
 
         /// <summary>