[SYNPY-1442] Log update to capture exception when download-list fails

[BryanFauble]

Problem:

1. If an exception was raised during get-download-list we did not print it out anywhere (Exception Swallowing)

Solution:

1. use .exception on the logger which will capture the exception being raised

Testing:

1. Verified functionality in a unit test
2. Also verified by manually placing temporary code in .get() that the exception is logged to console:

   Downloading  [####################]100.00%   418.0bytes/418.0bytes (227.4kB/s) manifest.csv Done...
   [ERROR] Unable to download file
   Traceback (most recent call last):
   File "/home/bfauble/BryansGreatWorkspace/synapsePythonClient/synapseclient/client.py", line 2195, in get_download_list
   entity = self.get(row["ID"], downloadLocation=downloadLocation)
   File "/home/bfauble/.pyenv/versions/3.8.18/lib/python3.8/contextlib.py", line 75, in inner
   return func(*args, **kwds)
   File "/home/bfauble/BryansGreatWorkspace/synapsePythonClient/synapseclient/client.py", line 1098, in get
   raise SynapseError("This is a test error")
   synapseclient.core.exceptions.SynapseError: This is a test error
   [WARNING] A manifest was created, but no files were downloaded
   Manifest file: manifest_1708712431265684147.csv

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

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