chore: Release stackable-operator 0.77.0

[sbernauer]

Description

One could argue this is a bugfix release, but let's play it safe

Fixed

• Fix the logback configuration for logback versions from 1.3.6/1.4.6 to 1.3.11/1.4.11 (#874).
• BREAKING: Avoid colliding volumes and mounts by only adding volumes or mounts if they do not already exist. This makes functions such as PodBuilder::add_volume or ContainerBuilder::add_volume_mount as well as related ones fallible (#871).

Changed

• BREAKING: Remove the unique_identifier argument from ResolvedS3Connection::add_volumes_and_mounts, ResolvedS3Connection::volumes_and_mounts and ResolvedS3Connection::credentials_mount_paths as it is not needed anymore (#871).

Definition of Done Checklist

• Not all of these items are applicable to all PRs, the author should update this template to only leave the boxes in that are relevant
• Please make sure all these things are done and tick the boxes

# Author
- [ ] Changes are OpenShift compatible
- [ ] CRD changes approved
- [ ] Integration tests passed (for non trivial changes)

# Reviewer
- [ ] Code contains useful comments
- [ ] (Integration-)Test cases added
- [ ] Documentation added or updated
- [ ] Changelog updated
- [ ] Cargo.toml only contains references to git tags (not specific commits or branches)

# Acceptance
- [ ] Feature Tracker has been updated
- [ ] Proper release label has been added