expose github.actor_id, github.workflow_ref & github.workflow_sha as environment variable (#2249)

* expose workflow refs/sha  as environment variables

* fixes environment variable ordering

* job_workflow_ref/sha aren't available in gh ctx

Author: amitrathi2040

src/Runner.Worker/GitHubContext.cs

@@ -13,6 +13,7 @@ public sealed class GitHubContext : DictionaryContextData, IEnvironmentContextDa
             "action_repository",
             "action",
             "actor",
+            "actor_id",
             "api_url",
             "base_ref",
             "env",
@@ -27,8 +28,10 @@ public sealed class GitHubContext : DictionaryContextData, IEnvironmentContextDa
             "ref_protected",
             "ref_type",
             "ref",
-            "repository_owner",
             "repository",
+            "repository_id",
+            "repository_owner",
+            "repository_owner_id",
             "retention_days",
             "run_attempt",
             "run_id",
@@ -39,7 +42,9 @@ public sealed class GitHubContext : DictionaryContextData, IEnvironmentContextDa
             "step_summary",
             "triggering_actor",
             "workflow",
-            "workspace",
+            "workflow_ref",
+            "workflow_sha",
+            "workspace"
         };
 
         public IEnumerable<KeyValuePair<string, string>> GetRuntimeEnvironmentVariables()