Fix IDE0090 (#2211)

src/Runner.Common/HostContext.cs

@@ -51,12 +51,12 @@ namespace GitHub.Runner.Common
         private static int _defaultLogRetentionDays = 30;
         private static int[] _vssHttpMethodEventIds = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 24 };
         private static int[] _vssHttpCredentialEventIds = new int[] { 11, 13, 14, 15, 16, 17, 18, 20, 21, 22, 27, 29 };
-        private readonly ConcurrentDictionary<Type, object> _serviceInstances = new ConcurrentDictionary<Type, object>();
-        private readonly ConcurrentDictionary<Type, Type> _serviceTypes = new ConcurrentDictionary<Type, Type>();
+        private readonly ConcurrentDictionary<Type, object> _serviceInstances = new();
+        private readonly ConcurrentDictionary<Type, Type> _serviceTypes = new();
         private readonly ISecretMasker _secretMasker = new SecretMasker();
-        private readonly List<ProductInfoHeaderValue> _userAgents = new List<ProductInfoHeaderValue>() { new ProductInfoHeaderValue($"GitHubActionsRunner-{BuildConstants.RunnerPackage.PackageName}", BuildConstants.RunnerPackage.Version) };
-        private CancellationTokenSource _runnerShutdownTokenSource = new CancellationTokenSource();
-        private object _perfLock = new object();
+        private readonly List<ProductInfoHeaderValue> _userAgents = new() { new ProductInfoHeaderValue($"GitHubActionsRunner-{BuildConstants.RunnerPackage.PackageName}", BuildConstants.RunnerPackage.Version) };
+        private CancellationTokenSource _runnerShutdownTokenSource = new();
+        private object _perfLock = new();
         private Tracing _trace;
         private Tracing _actionsHttpTrace;
         private Tracing _netcoreHttpTrace;
@@ -66,7 +66,7 @@ namespace GitHub.Runner.Common
         private IDisposable _diagListenerSubscription;
         private StartupType _startupType;
         private string _perfFile;
-        private RunnerWebProxy _webProxy = new RunnerWebProxy();
+        private RunnerWebProxy _webProxy = new();
 
         public event EventHandler Unloading;
         public CancellationToken RunnerShutdownToken => _runnerShutdownTokenSource.Token;