Error nginx 2.6.8

Hello,

After the last update `2.6.8`. I get the following error:

```bash
wallabag | 2024/01/11 13:18:17 [emerg] 153#153: still could not bind()
wallabag | nginx: [emerg] still could not bind()
wallabag | 2024/01/11 13:18:20 [emerg] 155#155: bind() to 0.0.0.0:80 failed (98: Address in use)
wallabag | nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address in use)
wallabag | 2024/01/11 13:18:20 [emerg] 155#155: bind() to [::]:80 failed (98: Address in use)
wallabag | nginx: [emerg] bind() to [::]:80 failed (98: Address in use)
wallabag | 2024/01/11 13:18:20 [emerg] 155#155: bind() to 0.0.0.0:80 failed (98: Address in use)
wallabag | nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address in use)
wallabag | 2024/01/11 13:18:20 [emerg] 155#155: bind() to [::]:80 failed (98: Address in use)
wallabag | nginx: [emerg] bind() to [::]:80 failed (98: Address in use)
```

The report only identifies the 2.6.8 update and nginx bind() errors on port 80. Start by comparing the 2.6.8 Docker configuration with the previous release and reproducing the container startup; done means identifying the cause of the port conflict and confirming a working startup configuration.

Written by the indexing model from the issue text.