Use gh api for workflow watch

[clockwork-labs-bot]

Description of Changes

Updates cargo ci other-workflows watch to poll workflow runs with:

gh api --include "repos/$OWNER/$REPO/actions/runs/$id"

instead of gh run view.

This should reduce API calls by 3x, since apparently gh run view currently does 3 API calls per call.

This also adds some diagnostic info in case we hit rate limits again. If gh api fails, the watcher now prints the complete captured stdout and stderr before returning an error. Because the call uses --include, stdout includes the HTTP status line and response headers, including GitHub rate-limit headers, plus the JSON error body.

API and ABI breaking changes

None.

Expected complexity level and risk

1. Narrow CI helper change.

Testing

• cargo fmt --manifest-path tools/ci/Cargo.toml --all -- --check
• cargo check -p ci
• cargo clippy -p ci -- -D warnings
• cargo run -p ci -- other-workflows watch --repo clockworklabs/SpacetimeDB --run-id 31536451346 --interval-seconds 1 --max-attempts 1
• cargo run -p ci -- other-workflows watch --repo clockworklabs/SpacetimeDB --run-id 0 --interval-seconds 1 --max-attempts 1 prints HTTP headers, rate-limit headers, JSON error body, and gh stderr for the expected 404
• git diff --check

[jdetter]

Seems fine, not manually tested by me