Gracefully error if users try to emit_datasets with Airflow 2.9.0 or 2.9.1

[tatiana]

Improve Cosmos error message when using Airflow 2.9.0 or 2.9.1 and emitting OL events, to avoid this:

[2024-05-07, 14:20:09 UTC] {local.py:409} DEBUG - URIs to be converted to Dataset: []
[2024-05-07, 14:20:09 UTC] {local.py:409} DEBUG - URIs to be converted to Dataset: ['***://***:5432/***.dbt.stg_customers']
[2024-05-07, 14:20:09 UTC] {providers_manager.py:376} DEBUG - Initializing Providers Manager[dataset_uris]
[2024-05-07, 14:20:09 UTC] {providers_manager.py:379} DEBUG - Initialization of Providers Manager[dataset_uris] took 0.00 seconds
[2024-05-07, 14:20:09 UTC] {taskinstance.py:441} ▼ Post task execution logs
[2024-05-07, 14:20:09 UTC] {taskinstance.py:2905} ERROR - Task failed with exception
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/airflow/models/taskinstance.py", line 465, in _execute_task
    result = _execute_callable(context=context, **execute_callable_kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/airflow/models/taskinstance.py", line 432, in _execute_callable
    return execute_callable(context=context, **execute_callable_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/airflow/models/baseoperator.py", line 400, in wrapper
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/cosmos/operators/base.py", line 266, in execute
    self.build_and_run_cmd(context=context, cmd_flags=self.add_cmd_flags())
  File "/usr/local/lib/python3.11/site-packages/cosmos/operators/local.py", line 470, in build_and_run_cmd
    result = self.run_command(cmd=dbt_cmd, env=env, context=context)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/cosmos/operators/local.py", line 343, in run_command
    outlets = self.get_datasets("outputs")
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/cosmos/operators/local.py", line 410, in get_datasets
    return [Dataset(uri) for uri in uris]
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/cosmos/operators/local.py", line 410, in <listcomp>
    return [Dataset(uri) for uri in uris]
            ^^^^^^^^^^^^
  File "<attrs generated init airflow.datasets.Dataset>", line 3, in __init__
    _setattr('uri', __attr_converter_uri(uri))
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/airflow/datasets/__init__.py", line 81, in _sanitize_uri
    parsed = normalizer(parsed)
             ^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/airflow/providers/postgres/datasets/postgres.py", line 34, in sanitize_uri
    raise ValueError("URI format postgres:// must contain database, schema, and table names")
ValueError: URI format ***:// must contain database, schema, and table names

Closes: #945

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.70%. Comparing base (7ad332a) to head (1aa2f04).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #948      +/-   ##
==========================================
+ Coverage   95.69%   95.70%   +0.01%     
==========================================
  Files          59       59              
  Lines        2858     2867       +9     
==========================================
+ Hits         2735     2744       +9     
  Misses        123      123              

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[pankajkoti]

LGTM