CI(docker-image): Bump `docker/metadata-action` to v5

[UnschooledGamer]

This commit updates docker/metadata-action to v5, that updates nodejs to v20 internally.

Changes

• Updated docker/metadata-action to v5

Why

It's required to update it to nodejs v20 and v5 updates those, as GitHub as removed support from node v16 more info at https://github.com/PerformanC/voice/pull/2

Checkmarks

• [x] checked to ensure it updates nodejs version on respective version v5.

Additional information

For proper info check here:

1. https://github.com/PerformanC/voice/pull/2
2. https://github.com/docker/metadata-action/releases/tag/v5.0.0
3. https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/

[UnschooledGamer]

Update this respective on your other workflows like connect repo etc.