feat: support phpmyadmin port configuration

[assumptionsandg]

Support port configure of phpmyadmin. I've been carrying a local patch for this: https://github.com/assumptionsandg/ansible-collection-azerothcore/blob/main/roles/azerothcore_install/defaults/main.yml#L59-L61

Haven't tested with env yet... will rebase my scripts on this when I get a chance to test.

[coderabbitai]

📝 Walkthrough

Walkthrough

The phpmyadmin service port mapping in docker-compose.yml is changed from a hardcoded 8080:80 to ${DOCKER_PHPMYADMIN_PORT:-8080}:80, making the host port configurable via environment variable with 8080 as the default.

Changes

phpMyAdmin Port Configuration

Layer / File(s)	Summary
Configurable phpmyadmin port docker-compose.yml	Port mapping replaced with ${DOCKER_PHPMYADMIN_PORT:-8080}:80 to allow host port override via environment variable.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

A rabbit hopped by and said, "Oh my!
Port eight-oh-eight-oh was fixed to the sky.
Now set it yourself with a variable key,
Default still holds — it's 8080, you see!"
🐇✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the main change: making phpMyAdmin port configuration configurable.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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_{Comment @coderabbitai help to get the list of available commands.}

[Helias]

thanks for the PR!