fix(block-kit): use in_progress status on the plan block example (#366)

Author: zimeg

block-kit/src/blocks/plan.py

@@ -43,7 +43,7 @@ def example01() -> PlanBlock:
             TaskCardBlock(
                 task_id="call_002",
                 title="Checked user permissions",
-                status="pending",
+                status="in_progress",
             ),
             TaskCardBlock(
                 task_id="call_003",

block-kit/tests/blocks/test_plan.py

@@ -50,7 +50,7 @@ def test_example01():
                 "type": "task_card",
                 "task_id": "call_002",
                 "title": "Checked user permissions",
-                "status": "pending",
+                "status": "in_progress",
             },
             {
                 "type": "task_card",