fix: avoid postgres-nxrm-1 FATAL: sorry, too many clients already

[hboutemy]

running profile direct, I get recurring postgres-nxrm-1 error messages from the very start:

nxrm3-direct-1   | Started Sonatype Nexus PRO 3.73.0-12
nxrm3-direct-1   |
nxrm3-direct-1   | -------------------------------------------------
postgres-nxrm-1  | 2024-10-17 02:39:56.092 UTC [256] FATAL:  sorry, too many clients already
postgres-nxrm-1  | 2024-10-17 02:39:57.129 UTC [262] FATAL:  sorry, too many clients already

Nexus Repository seems to work, but i suppose applying documentation's recommendation is wise, and not complex:
https://help.sonatype.com/en/prerequisite-step--adjust-max_connections.html

[madpah]

LGTM