dependabot is failing

See [here](https://github.com/elastic/apm-agent-python/actions/runs/11248516257/job/31273784137#step:3:71)

```
Dependabot can't update vulnerable dependencies without a lockfile
The currently installed version can't be determined.

To resolve the issue add a supported lockfile (Pipfile.lock, pyproject.lock or poetry.lock).
```

and

```
proxy | 2024/10/09 04:59:47 [015] GET [https://pypi.org:443/simple/django/](https://pypi.org/simple/django/)
proxy | 2024/10/09 04:59:47 [015] 200 [https://pypi.org:443/simple/django/](https://pypi.org/simple/django/)
updater | 2024/10/09 04:59:47 INFO Filtered out 4 yanked versions
updater | 2024/10/09 04:59:47 INFO Latest version is 5.1.2
updater | 2024/10/09 04:59:47 INFO Dependabot can't update vulnerable dependencies for projects without a lockfile or pinned version requirement as the currently installed version of django isn't known.
proxy | 2024/10/09 04:59:48 [019] POST /update_jobs/898200968/record_update_job_error
proxy | 2024/10/09 04:59:48 [019] 204 /update_jobs/898200968/record_update_job_error
proxy | 2024/10/09 04:59:48 [021] PATCH /update_jobs/898200968/mark_as_processed
proxy | 2024/10/09 04:59:48 [021] 204 /update_jobs/898200968/mark_as_processed
updater | 2024/10/09 04:59:48 INFO Finished job processing
updater | 2024/10/09 04:59:48 INFO Results:
Dependabot encountered '1' error(s) during execution, please check the logs for more details.
+-------------------------------+
| Errors |
+-------------------------------+
| dependency_file_not_supported |
+-------------------------------+
Failure running container 2c5d1c36c565c[53](https://github.com/elastic/apm-agent-python/actions/runs/11248516257/job/31273784137#step:3:55)e22f55c108d9f5d3ce9ca87b269cfcdf12f92aa89569091d4
Cleaned up container 2c5d1c36c565c53e22f55c108d9f5d3ce9ca87b269cfcdf12f92aa89569091d4
proxy | 2024/10/09 04:59:48 Posting metrics to remote API endpoint
2024/10/09 04:59:48 0/9 calls cached (0%)
Error: Dependabot encountered an error performing the update

Error: The updater encountered one or more errors.
```

Commencez par l’exécution GitHub Actions liée et examinez la configuration des dépendances utilisée par Dependabot. Déterminez si un fichier de verrouillage pris en charge ou une exigence épinglée est approprié, puis vérifiez que Dependabot peut identifier la version installée de Django et terminer correctement son travail de mise à jour.

Rédigé par le modèle d'indexation à partir du texte de l'issue.