Allow virtualenv code to access connections/variables and send logs (apache#57213)

This change is quite simple, as it simply calls the function added in apache#57212
if it's available. Up until the point that it is released this code will not
hit the `getattr` will return None and be a no-op.

I didn't use the walrus operator here as _theoretically_ someone could be
using this to run in a Python that doesn't support it.

Fixes apache#51422, fixes apache#54706

Co-authored-by: Amogh Desai <amoghrajesh1999@gmail.com>

Author: ashb

providers/standard/src/airflow/providers/standard/utils/python_virtualenv_script.jinja2

@@ -38,6 +38,16 @@ if sys.version_info >= (3,6):
         {# Airflow is not available in this environment, therefore we won't
          # be able to integrate any plugin macros. #}
         pass
+
+try:
+    from airflow.sdk.execution_time import task_runner
+except ModuleNotFoundError:
+    pass
+else:
+  {#- We are in an Airflow 3.x env, try and set up supervisor comms so virtual env can still access tasks etc! #}
+  reinit_supervisor_comms = getattr(task_runner, "reinit_supervisor_comms", None)
+  if reinit_supervisor_comms:
+      reinit_supervisor_comms()
 {% endif %}
 
 # Script
@@ -49,12 +59,10 @@ if sys.version_info >= (3,6):
 import types
 
 {{ modified_dag_module_name }}  = types.ModuleType("{{ modified_dag_module_name }}")
-
 {{ modified_dag_module_name }}.{{ python_callable }} = {{ python_callable }}
-
 sys.modules["{{modified_dag_module_name}}"] = {{modified_dag_module_name}}
 
-{% endif%}
+{%- endif -%}
 
 {% if op_args or op_kwargs %}
 with open(sys.argv[1], "rb") as file: