Improve error message for pyflyte run

[pingsutw]

Why are the changes needed?

Improve error message

What changes were proposed in this pull request?

raise an error if file not found

How was this patch tested?

Before:

(flytekit-3.10) ➜  plugins git:(improve-error-message-1) ✗ pyflyte run --remote flyte-example/airflow_example/time_sensor.py wf
Failed with Unknown Exception <class 'ModuleNotFoundError'> Reason: No module named 'time_sensor'
Traceback:
  File "/Users/kevin/git/flytekit/flytekit/clis/sdk_in_container/utils.py", line 139, in invoke
    return super().invoke(ctx)

  File "/Users/kevin/anaconda3/envs/flytekit-3.10/lib/python3.10/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))

  File "/Users/kevin/anaconda3/envs/flytekit-3.10/lib/python3.10/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))

  File "/Users/kevin/anaconda3/envs/flytekit-3.10/lib/python3.10/site-packages/click/core.py", line 1682, in invoke
    cmd_name, cmd, args = self.resolve_command(ctx, args)

  File "/Users/kevin/anaconda3/envs/flytekit-3.10/lib/python3.10/site-packages/click/core.py", line 1729, in resolve_command
    cmd = self.get_command(ctx, cmd_name)

  File "/Users/kevin/git/flytekit/flytekit/clis/sdk_in_container/run.py", line 818, in get_command
    entity = load_naive_entity(module, exe_entity, project_root)

  File "/Users/kevin/git/flytekit/flytekit/clis/sdk_in_container/run.py", line 294, in load_naive_entity
    importlib.import_module(module_name)

  File "/Users/kevin/anaconda3/envs/flytekit-3.10/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import

  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load

  File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked

No module named 'time_sensor'

After:

(flytekit-3.10) ➜  plugins git:(improve-error-message-1) ✗ pyflyte run --remote flyte-example/airflow_example/time_sensor.py wf 
Failed with Unknown Exception <class 'ValueError'> Reason: File /Users/kevin/git/flytekit/plugins/flyte-example/airflow_example/time_sensor.py does not exist
Traceback:
  File "/Users/kevin/git/flytekit/flytekit/clis/sdk_in_container/utils.py", line 139, in invoke
    return super().invoke(ctx)

  File "/Users/kevin/anaconda3/envs/flytekit-3.10/lib/python3.10/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))

  File "/Users/kevin/anaconda3/envs/flytekit-3.10/lib/python3.10/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))

  File "/Users/kevin/anaconda3/envs/flytekit-3.10/lib/python3.10/site-packages/click/core.py", line 1682, in invoke
    cmd_name, cmd, args = self.resolve_command(ctx, args)

  File "/Users/kevin/anaconda3/envs/flytekit-3.10/lib/python3.10/site-packages/click/core.py", line 1729, in resolve_command
    cmd = self.get_command(ctx, cmd_name)

  File "/Users/kevin/git/flytekit/flytekit/clis/sdk_in_container/run.py", line 796, in get_command
    raise ValueError(f"File {self._filename} does not exist")

File /Users/kevin/git/flytekit/plugins/flyte-example/airflow_example/time_sensor.py does not exist

Check all the applicable boxes

• I updated the documentation accordingly.
• All new and existing tests passed.
• All commits are signed-off.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f058663) 83.01% compared to head (f56a21e) 85.80%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2142      +/-   ##
==========================================
+ Coverage   83.01%   85.80%   +2.79%     
==========================================
  Files         176      313     +137     
  Lines       17116    23579    +6463     
  Branches     3530     3530              
==========================================
+ Hits        14208    20231    +6023     
- Misses       2298     2738     +440     
  Partials      610      610              

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[eapolinario]

Can we do a similar exercise with inexistent tasks too? In a separate PR.

[Future-Outlier]

LGTM