update unit test layered deployment runtime version

tests/test_iotedgedev_layereddeployments.py

@@ -5,11 +5,17 @@ from .utility import (
     get_platform_type,
     runner_invoke,
 )
+from iotedgedev.envvars import EnvVars
+from iotedgedev.output import Output
+
 
 pytestmark = pytest.mark.e2e
 
 test_solution_shared_lib_dir = os.path.join(os.getcwd(), "tests", "assets", "test_solution_shared_lib")
 
+output = Output()
+envvars = EnvVars(output)
+envvars.load()
 
 def test_build_and_push():
     os.chdir(test_solution_shared_lib_dir)
@@ -36,4 +42,4 @@ def test_build_and_push_with_no_modules():
     set_property = content["content"]["modulesContent"]["exampleModule"]["properties.desired"]["foo"]
 
     assert 'ERROR' not in result.output
-    assert 'bar-1.0' == set_property
+    assert 'bar-${envvars.EDGE_RUNTIME_VERSION}' == set_property