Document the treatment of the GIT ecosystem

**Describe the bug**

While checking the zip file which contains all the vulns in the feed, some of them are missing from the zip file.
For instance -
```
GSD-2022-1001781
```
I can see them in the feed - https://osv-vulnerabilities.storage.googleapis.com/GIT/GSD-2022-1001781.json, but for some reason, they are missing from the zip file

**To Reproduce**
Steps to reproduce the behaviour:
Already shared in the error description

**Expected behaviour**
Vulnerability should be present
**Screenshots**
If applicable, add screenshots to help explain your problem.

**Additional context**
Add any other context about the problem here.