[BUILD-399] fix: Error when creating bulk suggestion with media

[RisingOrange]

Fixes the issue reported here: https://community.ankihub.net/t/ankihub-wont-let-me-suggest/230801/8 Sentry: https://ankihub.sentry.io/issues/5416457312/?project=6546414&query=id%3A48adac24738643b89b33dbce309e9f68&referrer=issue-stream&statsPeriod=14d&stream_index=0

Related issues

https://ankihub.atlassian.net/jira/software/c/projects/BUILD/boards/1?selectedIssue=BUILD-399

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 80.00000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 87.64%. Comparing base (a9214b2) to head (77bff50). Report is 1 commits behind head on main.

Files	Patch %	Lines
ankihub/gui/suggestion_dialog.py	66.66%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #966 +/- ## ========================================== - Coverage 87.65% 87.64% -0.02% ========================================== Files 66 66 Lines 6619 6621 +2 ========================================== + Hits 5802 5803 +1 - Misses 817 818 +1 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[sentry-io[bot]]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ AnkiHubRequestException: AnkiHub request exception: HTTPSConnectionPool(host='app.ankihub.net', port=443): Max retries exc... 1322529746.ankihub_client.ankihub_client in _se... View Issue
• ‼️ AnkiHubRequestException: AnkiHub request exception: HTTPSConnectionPool(host='app.ankihub.net', port=443): Max retries exc... 1322529746.ankihub_client.ankihub_client in _se... View Issue

_{Did you find this useful? React with a 👍 or 👎}