Release 1.5

[kate-osborn]

Issue to track the release tasks for 1.5.0 following our release process.

### Tasks
- [ ] Create release branch
- [ ] Run longevity tests
- [ ] Run NFR tests
- [ ] Create release PR
- [ ] Merge release PR
- [ ] Create release tag
- [ ] Create release PR for main branch
- [ ] Publish release docs
- [ ] Submit conformance profile report

Release Owner Rotation

• Kate
• Saylor
• Saloni <<<
• Luca
• Ben
• Sindhu