Patch for missing collection dates for snow courses

[aeslaughter]

No description provided.

[micah-prime]

Looks like some flake8 errors. If you want to update the max line length in the pipeline you can

./metloom/dataframe_utils.py:120:23: E261 at least two spaces before inline comment
./metloom/pointdata/snotel_client.py:215:121: E501 line too long (124 > 120 characters)
./metloom/pointdata/snotel_client.py:216:121: E501 line too long (125 > 120 characters)
./metloom/pointdata/snotel_client.py:216:126: W291 trailing whitespace
./metloom/pointdata/snotel_client.py:217:119: W291 trailing whitespace
./metloom/pointdata/snotel_client.py:230:121: E501 line too long (132 > 120 characters)
1     E261 at least two spaces before inline comment
3     E501 line too long (124 > 120 characters)
2     W291 trailing whitespace