Add aarch64 linux/darwin as default platforms

[mwrock]

This also fixes hard coded blackduck version.

[Copilot]

Pull request overview

Updates default platform targeting for Habitat Builder and adjusts CI workflow version sourcing to align SBOM/BlackDuck inputs with the repository’s VERSION file.

Changes:

• Add aarch64-darwin and aarch64-linux to the default Builder API target list (Habitat service config).
• Update the CI main PR stub workflow to detect the version from the repo VERSION file instead of hardcoding it.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
components/builder-api/habitat/default.toml	Extends default api.targets to include aarch64 Linux and macOS.
.github/workflows/ci-main-pull-request-stub.yml	Switches CI version sourcing to VERSION file (but currently has a YAML input formatting issue).

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

Suppressed comments (1)

components/builder-api/habitat/default.toml:4

• The targets listed in this Habitat default.toml are now significantly broader than the Builder API’s Rust defaults (ApiCfg::default uses only x86_64-linux and x86_64-windows in components/builder-api/src/config.rs:148). This can lead to inconsistent behavior depending on whether Builder is started with the Habitat-provided config vs relying on Rust defaults (e.g., local dev / tests / alternate config-loading paths), so these “default platforms” won’t actually be defaults in all code paths.

targets = ["x86_64-linux", "x86_64-linux-kernel2", "x86_64-windows", "aarch64-darwin", "aarch64-linux"]