WIP: catch oidc token error

vault_oidc_ssh_cert_action.py

@@ -53,8 +53,14 @@ def _issue_github_jwt(jwt_aud: str) -> str:
     full_url = f"{req_url}&audience={jwt_aud}"
     headers = {"Authorization": f"Bearer {req_token}"}
 
-    response = requests.get(full_url, headers=headers, timeout=10)
-    response.raise_for_status()
+    try:
+        response = requests.get(full_url, headers=headers, timeout=10)
+        response.raise_for_status()
+    except requests.exceptions.RequestException as request_error:
+        title = "GitHub OIDC JWT token issuing error"
+        message = f"{type(request_error).__name__}: {str(request_error)}"
+        _set_error_message(title, message)
+        raise VoscaError(title) from request_error
 
     jwt_token: str = response.json()["value"]
     return jwt_token