fix(psharold): unsqueeze action_args in PDQN when shape is 1

[PSHarold]

Description

When action_args_shape is 1, the code below throws an exception. Here, action_args should be of size (B, 1), not (B, ).

Related Issue

TODO

Check List

• merge the latest version source branch/repo, and resolve all the conflicts
• pass style check
• pass all the tests

[codecov]

Codecov Report

Merging #599 (9ed0a23) into main (1e6f503) will decrease coverage by 0.23%.
The diff coverage is 97.50%.

@@            Coverage Diff             @@
##             main     #599      +/-   ##
==========================================
- Coverage   83.53%   83.31%   -0.23%     
==========================================
  Files         564      564              
  Lines       46201    46154      -47     
==========================================
- Hits        38596    38454     -142     
- Misses       7605     7700      +95     

Flag	Coverage Δ
unittests	83.31% <97.50%> (-0.23%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
ding/torch_utils/__init__.py	100.00% <ø> (ø)
ding/torch_utils/data_helper.py	78.29% <92.85%> (+0.83%)	⬆️
ding/model/template/pdqn.py	92.53% <100.00%> (+0.22%)	⬆️
ding/model/template/tests/test_pdqn.py	78.72% <100.00%> (+1.45%)	⬆️
ding/torch_utils/tests/test_data_helper.py	77.96% <100.00%> (+2.35%)	⬆️
...r/collector/battle_interaction_serial_evaluator.py	93.79% <100.00%> (+0.04%)	⬆️
...g/worker/collector/interaction_serial_evaluator.py	81.57% <100.00%> (+0.12%)	⬆️
ding/framework/message_queue/tests/test_nng.py	42.30% <0.00%> (-57.70%)	⬇️
ding/worker/collector/marine_parallel_collector.py	69.90% <0.00%> (-19.96%)	⬇️
ding/model/template/atoc.py	86.31% <0.00%> (-8.95%)	⬇️
... and 64 more

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[PaParaZz1]

please modify multi-argument unittest like this demo

[PaParaZz1]

Thanks for your contribution. BTW, please modify the name of this PR like other pull requests.