Update cyberchef default confs

[MeheheCedy22]

• Update healthcheck command for cyberchef (use nginx)
• Fixed default cyberchef/nginx port

[Cyberchef: Update]: [Config: defaults change]

Description

• Fixed default cyberchef/nginx port
• Update healthcheck command

Related Issues

• None.

Verification

Checklist

• I have performed a self-review of my code and followed the templates structure.
• I have added verification that the stack works as expected.
• I have updated necessary documentation (e.g. frontpage README.md ).
• I have selected the correct label(s) for this PR.

Additional Context

• None.