Bump collections/ansible_collections/prometheus/prometheus

Bumps [collections/ansible_collections/prometheus/prometheus](https://github.com/prometheus-community/ansible) from `2cfaf9c` to `964658f`.
- [Release notes](https://github.com/prometheus-community/ansible/releases)
- [Commits](prometheus-community/ansible@2cfaf9c...964658f)

---
updated-dependencies:
- dependency-name: collections/ansible_collections/prometheus/prometheus
  dependency-type: direct:production
...

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Author: dependabot[bot]