Release workflow runner v0.4.54

[Shooksie]

Release

Bump the default workflow runner to v0.4.54 for kernel-selected fresh workflow IDs.

Validation

• Full implementation suite: 293 passed, 5 known ignored, 0 failed
• Release checkout cargo check --locked passed
• PR Bootstrap workflows with the kernel-selected identity #41 CI passed

[animus-launchapp-gitprovider]

VERDICT: APPROVE

No blocking findings. The release bump is minimal and internally consistent: Cargo.toml and the root package entry in Cargo.lock both move from 0.4.53 to 0.4.54, with no unrelated changes. The Rust quality-gates check completed successfully.