feat: 'export' is used to replace 'output' in testcase config

tests/data/demo_testcase_layer.yml

@@ -6,7 +6,7 @@
         os_platform: 'ios'
         app_version: '2.8.6'
     base_url: ${get_base_url()}
-    output:
+    export:
         - token
 
 - test:

tests/test_api.py

@@ -93,7 +93,7 @@ class TestHttpRunner(ApiServerUnittest):
                         "var1": "abc",
                         "var2": "def"
                     },
-                    "output": ["status_code", "req_data"]
+                    "export": ["status_code", "req_data"]
                 },
                 "teststeps": [
                     {

tests/testcases/create_user.v2.yml

@@ -5,7 +5,7 @@ config:
     variables:
         uid: 9001
         device_sn: "TESTCASE_CREATE_XXX"
-    output:
+    export:
         - session_token
 
 teststeps:

tests/testcases/create_user.yml

@@ -6,7 +6,7 @@
     variables:
         uid: 9001
         device_sn: "TESTCASE_CREATE_XXX"
-    output:
+    export:
         - session_token
 
 - test:

tests/testcases/setup.v2.yml

@@ -8,7 +8,7 @@ config:
         app_version: '2.8.6'
     base_url: "http://127.0.0.1:5000"
     verify: False
-    output:
+    export:
         - session_token
 
 teststeps:

tests/testcases/setup.yml

@@ -8,7 +8,7 @@
         app_version: '2.8.6'
     base_url: "http://127.0.0.1:5000"
     verify: False
-    output:
+    export:
         - session_token
 
 - test: