security: updated gitpython version

[Cube707]

the old version was flagged as comprimised in the security-workflow

+=============================+ 
VULNERABILITIES FOUND
+=============================+ 
-> Vulnerability found in gitpython version 3.1.29
   Vulnerability ID: 52322
   Affected spec: <3.1.30
   ADVISORY: All versions of package gitpython are vulnerable to Remote Code Execution (RCE) due to improper user input validation, which makes it possible to inject a maliciously crafted
   remote URL into the clone command. Exploiting this vulnerability is possible because the library makes external calls to git without sufficient sanitization of input arguments.
   CVE-2022-24439
   For more information, please visit https://pyup.io/v/52322/f17

 Scan was completed. 1 vulnerability was found.

updated to secure version 3.1.30