Allow the scanner to recover from a 404 response from TA

[akoebbe]

I lost my TA database and when rebuilding it from the video files some of the files didn't populate (I assume because they were taken down after I originally downloaded them). Since the files still exist the scanner finds them and tries to query TA for the metadata, but receives a 404 and the script isn't allowed to continue. This fix continues the loop so that rest of the videos can be pulled in.

[akoebbe]

For reference, here is the relevant error log snipit of the original issue...

2024-10-15 23:10:16,375 [TubeArchivist Scanner] INFO - Attempting to connect to TubeArchivist at http://10.0.0.5:8000 with provided token from `ta_config.json` file.
2024-10-15 23:10:16,380 [TubeArchivist Scanner] INFO - TubeArchivist is running version v0.4.10
2024-10-15 23:10:16,381 [TubeArchivist Scanner] INFO - Initiating scan of library files...
2024-10-15 23:10:16,382 [TubeArchivist Scanner] INFO - Processing file with scanner: 70SaMb806sk.mp4
2024-10-15 23:10:16,382 [TubeArchivist Scanner] INFO - File matches expected filename layout.
2024-10-15 23:10:16,382 [TubeArchivist Scanner] INFO - Attempting to connect to TubeArchivist to lookup YouTube video: 70SaMb806sk
2024-10-15 23:10:16,389 [TubeArchivist Scanner] ERROR - Error reading or accessing url 'http://10.0.0.5:8000/api/video/70SaMb806sk/', Exception: 'HTTP Error 404: Not Found'
2024-10-15 23:10:16,389 [TubeArchivist Scanner] ERROR - Error connecting to TubeArchivist with URL 'http://10.0.0.5:8000/api/video/70SaMb806sk/', Exception: 'HTTP Error 404: Not Found'
2024-10-15 23:10:16,389 [TubeArchivist Scanner] ERROR - Error processing video response from TubeArchivist at URL 'http://10.0.0.5:8000', Exception: 'HTTP Error 404: Not Found'
2024-10-15 23:10:16,389 [TubeArchivist Scanner] ERROR - Issue with setting metadata from video using response metadata: '{}', Exception: 'HTTP Error 404: Not Found'

[lamusmaser]

Can you push this against the testing branch?