Improve git command invocation (version number)

Before, it was impossible to run individual test cases in PyCharm because of a path issue, we are now being more explicit.

dashboard/utils.py

@@ -1,5 +1,7 @@
 import subprocess
 
+from django.conf import settings
+
 
 def readable_string(input_string: str) -> str:
     """Remove multiple whitespaces and \n to make a long string more readable"""
@@ -8,6 +10,8 @@ def readable_string(input_string: str) -> str:
 
 def human_readable_git_version_number() -> str:
     """Return the git tag name (if available) or the git commit hash (if not)"""
+    project_root = settings.BASE_DIR
+
     return subprocess.check_output(
-        ["git", "describe", "--always", "--tags"], encoding="UTF-8"
+        ["git", "-C", project_root, "describe", "--always", "--tags"], encoding="UTF-8"
     ).strip()