feat: Reduce API calls for initialized resource reaper

Author: HofmeisterAn

src/Testcontainers/Clients/DockerApiClient.cs

@@ -119,7 +119,7 @@ await RuntimeInitialized.WaitAsync(ct)
         }
         Logger.LogInformation("{RuntimeInfo}", runtimeInfo);
       }
-      catch(Exception e)
+      catch (Exception e)
       {
         Logger.LogError(e, "Failed to retrieve Docker container runtime information");
       }

src/Testcontainers/Clients/TestcontainersClient.cs

@@ -311,7 +311,9 @@ public async Task<string> RunAsync(IContainerConfiguration configuration, Cancel
     {
       ImageInspectResponse cachedImage;
 
-      if (TestcontainersSettings.ResourceReaperEnabled && ResourceReaper.DefaultSessionId.Equals(configuration.SessionId))
+      if (TestcontainersSettings.ResourceReaperEnabled
+          && ResourceReaper.IsUnavailable
+          && ResourceReaper.DefaultSessionId.Equals(configuration.SessionId))
       {
         var isWindowsEngineEnabled = await System.GetIsWindowsEngineEnabled(ct)
           .ConfigureAwait(false);

src/Testcontainers/Containers/ResourceReaper.cs

@@ -90,6 +90,13 @@ private ResourceReaper(Guid sessionId, IDockerEndpointAuthenticationConfiguratio
     public static Guid DefaultSessionId { get; }
       = Guid.NewGuid();
 
+    /// <summary>
+    /// Gets a value indicating whether the default <see cref="ResourceReaper" /> instance is running and available.
+    /// </summary>
+    [PublicAPI]
+    public static bool IsUnavailable
+      => _defaultInstance == null || _defaultInstance._disposed;
+
     /// <summary>
     /// Gets the <see cref="ResourceReaper" /> session id.
     /// </summary>