proxy support for mordred

Hi Team,

We are trying to setup GrimoireLab using docker compose.
we are getting the below error in grimoirelab logs
```
2024-03-21 09:10:44,932 - sirmordred.task_projects - INFO - Reading projects data from /home/grimoire/conf/projects.json
2024-03-21 09:10:45,159 - grimoire_elk.elastic - INFO - Created index http://elasticsearch:9200/git_demo_raw
2024-03-21 09:10:45,228 - grimoire_elk.elastic - INFO - Alias {'alias': 'git-raw', 'index': 'git_demo_raw'} created on http://elasticsearch:9200/git_demo_raw.
2024-03-21 09:10:45,245 - grimoire_elk.raw.elastic - INFO - [git] Incremental from: None until None for https://github.com/chaoss/grimoirelab-perceval
2024-03-21 09:10:45,317 - grimoire_elk.elk - ERROR - Error feeding raw from git (https://github.com/chaoss/grimoirelab-perceval): git command - Cloning into bare repository '/home/grimoire/.perceval/repositories/https://github.com/chaoss/grimoirelab-perceval-git'...
fatal: unable to access 'https://github.com/chaoss/grimoirelab-perceval/': Could not resolve host: github.com
Traceback (most recent call last):
```
is there any way to pass proxy for grimoirelab (mordred)

We are also passing proxy as environment variable for mordred
```
environment:
- HTTPS_PROXY=proxy-name:3128
- no_proxy=
```

Thanks,
Anisha