Added missing continue on error setting (#756)

Author: david-driscoll

src/Nuke/GithubActions/BaseGitHubActionsStep.cs

@@ -35,6 +35,11 @@ protected BaseGitHubActionsStep(string name)
     /// </summary>
     public GithubActionCondition? If { get; set; }
 
+    /// <summary>
+    ///     Should this continue on error or not
+    /// </summary>
+    public bool ContinueOnError { get; set; }
+
     /// <summary>
     ///     The dependencies of this job
     /// </summary>
@@ -63,6 +68,11 @@ public override void Write(CustomFileWriter writer)
             {
                 writer.WriteLine($"if: {If}");
             }
+
+            if (ContinueOnError)
+            {
+                writer.WriteLine($"continue-on-error: {Id}");
+            }
         }
     }