Update to Chisel 6.7, use new annotation API

[tymcauley]

Bump submodules to remove deprecated ChiselAnnotation API, which is going away in Chisel 7. Submodule PRs:

• Update to Chisel 6.7, use new annotation API chipsalliance/rocket-chip#3724
• Update to Chisel 6.7, use new annotation API chipsalliance/diplomacy#19
• Use new Chisel annotations API constellation#82

Chisel release notes:

• https://github.com/chipsalliance/chisel/releases/tag/v6.6.0
• https://github.com/chipsalliance/chisel/releases/tag/v6.7.0

Related PRs / Issues:

Type of change:

• Bug fix
• New feature
• Other enhancement

Impact:

• RTL change
• Software change (RISC-V software)
• Build system change
• Other

Contributor Checklist:

• Did you set main as the base branch?
• Is this PR's title suitable for inclusion in the changelog and have you added a changelog:<topic> label?
• Did you state the type-of-change/impact?
• Did you delete any extraneous prints/debugging code?
• Did you mark the PR with a changelog: label?
• (If applicable) Did you update the conda .conda-lock.yml file if you updated the conda requirements file?
• (If applicable) Did you add documentation for the feature?
• (If applicable) Did you add a test demonstrating the PR?

• (If applicable) Did you mark the PR as Please Backport?

CI Help:
Add the following labels to modify the CI for a set of features.
Generally, a label added only affect subsequent changes to the PR (i.e. new commits, force pushing, closing/reopening).
See ci:* for full list of labels:

• ci:fpga-deploy - Run FPGA-based E2E testing
• ci:local-fpga-buildbitstream-deploy - Build local FPGA bitstreams for platforms that are released
• ci:disable - Disable CI

[tymcauley]

Okay, all of the submodules have been bumped to the default branches, so there are no pending edits on this from me.

[tymcauley]

@jerryz123 I think this needs your permission to go through CI again.

[tymcauley]

Thanks for running this through CI @jerryz123! Is this PR good-to-merge?

[jerryz123]

Yep! Thanks again for pushing this through