feat: enable the auto-merge feature on dependabot prs

[rwaffen]

- so we only have to approve them
- enables the github feature auto-merge
- only add this if tests pass

[github-actions]

Outdated

Overview

Image reference	ghcr.io/voxpupuli/voxbox:8-main	ci/voxbox:8.8.1
- digest	e7cd467c42cb	f175b40e0790
- tag	8-main	8.8.1
- vulnerabilities
- platform	linux/amd64	linux/amd64
- size	190 MB	212 MB (+22 MB)
- packages	379	379
Base Image	ruby:3.2-alpine also known as: • 3.2-alpine3.20 • 3.2.5-alpine • 3.2.5-alpine3.20	ruby:3.2-alpine also known as: • 3.2-alpine3.20 • 3.2.5-alpine • 3.2.5-alpine3.20
- vulnerabilities

[github-actions]

Overview

Image reference	ghcr.io/voxpupuli/voxbox:7-main	ci/voxbox:7.32.1
- digest	788a5b9599c1	39e745db7aeb
- tag	7-main	7.32.1
- vulnerabilities
- platform	linux/amd64	linux/amd64
- size	167 MB	188 MB (+21 MB)
- packages	326	326
Base Image	ruby:2-alpine	ruby:2-alpine
- vulnerabilities