Error checking and bug fix for getting git commit hash in crash report

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 66.66667% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 81.24%. Comparing base (e54c209) to head (f084b7a).

Files	Patch %	Lines
...gent0/core/hyperdrive/crash_report/crash_report.py	66.66%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1428 +/- ## ========================================== - Coverage 81.27% 81.24% -0.04% ========================================== Files 104 104 Lines 6388 6393 +5 ========================================== + Hits 5192 5194 +2 - Misses 1196 1199 +3 ``` | [Flag](https://app.codecov.io/gh/delvtech/agent0/pull/1428/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/delvtech/agent0/pull/1428/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech) | `81.24% <66.66%> (-0.04%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=delvtech#carryforward-flags-in-the-pull-request-comment) to find out more.

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