postgres is not supported in docker image

[jacekjaros]

Description

When deploy latest docker image and enable telemetry no results are written to database because of missing libpq5 package.

Server

• docker image - ghcr.io -> librespeed/speedtest:latest

Env

DB_HOSTNAME postgres.int.xxx
DB_NAME librespeed
DB_PASSWORD XXXXXXX
DB_PORT 5432
DB_TYPE postgresql
DB_USERNAME librespeed
EMAIL jacek@XXXXX
ENABLE_ID_OBFUSCATION false
IPINFO_APIKEY XXX
MODE standalone
TELEMETRY true

Client

Firefox - latest

Steps to reproduce

• use latest docker image
• set provided env variables
• do speed test
• check docker logs and data in postgres

Expected behavior

speed test data stored in postgres

Docker logs

<b>Warning</b>: PHP Startup: Unable to load dynamic library 'pgsql.so' (tried: /usr/local/lib/php/extensions/no-debug-non-zts-20230831/pgsql.so (libpq.so.5: cannot open shared object file: No such file or directory), /usr/local/lib/php/extensions/no-debug-non-zts-20230831/pgsql.so.so (/usr/local/lib/php/extensions/no-debug-non-zts-20230831/pgsql.so.so: cannot open shared object file: No such file or directory)) in <b>Unknown</b> on line <b>0</b><br />

[sstidl]

should be fixed with 0c31f1d

[sstidl]

will be released with #678