v1.29.0rc1

What's Changed

• Allow barriers when dagger or transpose circuits by @yao-cqc in #1400
• Bump cachix/install-nix-action from 26 to 27 by @dependabot in #1403
• Bump actions/add-to-project from 0.6.1 to 1.0.1 by @dependabot in #1404
• Use ubuntu-24.04 on CI by @cqc-alec in #1401
• Add OpType.CnRx and OpType.CnRz by @sjdilkes in #1405
• Update place_fully_connected by @sjdilkes in #1409
• Bump cachix/cachix-action from 14 to 15 by @dependabot in #1416
• Post benchmarking results to slack by @daniel-mills-cqc in #1417
• Refactor auto rebase and auto squash by @yao-cqc in #1410
• Revert to using ubuntu-22.04 runner for valgrind checks. by @cqc-alec in #1432
• Handle NPhasedX gates in decompose_cliffords_std() by @cqc-alec in #1431
• Add workflow to mark stale issues and PRs. by @cqc-alec in #1437
• update remove blank wires to keep classical bits by @cqc-melf in #1435
• Run ZX test with all Python versions by @cqc-alec in #1438
• Update Windows compiler version. by @cqc-alec in #1442
• Fix FlattenRelabelRegistersPass by @cqc-melf in #1441

Full Changelog: v1.28.0...v1.29.0rc1