Describe the bug
If you set a TRUSTED_PROXY env var with a non-numeric value, like "10.0.0.0/8", there is a warning in the log:
./Docker/entrypoint.sh: 15: [: Illegal number: 10.0.0.0/8

To Reproduce
Steps to reproduce the behavior:

1. Deploy freshrss 1.22 through its docker image
2. pass a TRUSTED_PROXY env var, with value "10.0.0.0/8"
3. Run the container
4. See the first line in docker logs:

./Docker/entrypoint.sh: 15: [: Illegal number: 10.0.0.0/8

Expected behavior
There should be no warning, as this is an expected value for this env var, according to the documentation

Environment information (please complete the following information):

• Device: Desktop
• OS: Ubuntu 22.04
• Browser: Firefox 118.0.2
• FreshRSS version: 1.22
• Database version: PostgreSQL 14.7
• PHP version: 8.2.7
• Installation type: docker image 1.22.0-arm (but should be the same with amd)

Additional context
This is because of the following line in entrypoint.sh file:
if [ "$TRUSTED_PROXY" -eq 0 ]; then