build(release): migrate from release-plz to cargo-release

[JustinKovacich]

Phase A of DFT→Kellnr: standardize simple_someip on cargo-release (tag v{version}, crates.io, publish=false, CI-owned), retiring release-plz. Examples + embassy-net stay publish=false; only simple-someip publishes.

Publish stays deliberate: the publish job only runs when vars.SIMPLE_SOMEIP_PUBLISH_ENABLED is set and a crates.io token is provisioned. Nothing publishes on merge.

⚠️ Heads-up for maintainers: main currently has ~12 failing lib tests (heapless event_group_ids capacity exceeded: 67 at src/server/mod.rs:370). They're unrelated to this CI/manifest change, but the pre-release-hook runs the test suite, so a real cargo release is blocked until they're fixed.

Note: cargo-release does not auto-generate a CHANGELOG / GitHub release the way release-plz did — intentional for this flow.

Part of the DFT→Kellnr Phase A program (per-repo release model).

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

@@           Coverage Diff           @@
##             main     #141   +/-   ##
=======================================
  Coverage   81.13%   81.13%           
=======================================
  Files          45       45           
  Lines       15182    15182           
=======================================
  Hits        12318    12318           
  Misses       2864     2864           

[Copilot]

Pull request overview

Migrates the repository’s release automation from release-plz to cargo-release, aligning with a tag-based (v*) release flow and introducing a gated crates.io publish job.

Changes:

• Add cargo-release configuration via release.toml (including tag naming and a pre-release test hook).
• Replace release-plz GitHub Actions workflow/config with a new Release workflow that runs semver checks and (optionally) publishes on tag pushes.
• Mark simple-someip-embassy-net as non-publishable (publish = false) to ensure only the main crate is intended for publication.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
simple-someip-embassy-net/Cargo.toml	Marks the adapter crate as publish = false to prevent accidental publishing.
release.toml	Introduces cargo-release configuration (tagging, branch restriction, pre-release test hook).
release-plz.toml	Removes legacy release-plz configuration.
.github/workflows/release.yml	Adds new release workflow with semver checks and a gated publish job using cargo-release.
.github/workflows/release-plz.yml	Removes legacy release-plz GitHub Actions workflow.

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[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

[JustinKovacich]

Holding — as part of the protocol-stack reframe, this crate is slated to move to a dedicated public repo under a new MicroVision public org (built on the Automotive Wire Codec, consumed internally via the Kellnr proxy). Standing up publish tooling in its current home is therefore on hold pending the org/hosting decision (to be finalized with Zach).

Converting to draft rather than closing so the work is easy to resume once the target repo/org is settled.