TEST: Added test cases for Create Dataset HTTP API (#5724)

### What problem does this PR solve?

1. add test cases
2. integrate workflows/tests.yml into CI pipeline

### Type of change

- [x] add testcases

sdk/python/pyproject.toml

@@ -18,3 +18,8 @@ dependencies = [
 test = [
     "pytest>=8.0.0,<9.0.0"
 ]
+
+[tool.pytest.ini_options]
+markers = [
+    "slow: marks tests as slow (deselect with '-m \"not slow\"')",
+]