This pure CDK app is built and synthed on Node 24 (no Lambdas), so
@types/node is pinned to ^24. A too-new types major still compiles, so a
major bump passes CI while describing APIs absent at the build Node.
Add a scoped Dependabot ignore for @types/node semver-major bumps so the
alignment can only be broken deliberately, alongside a Node upgrade.
Minor/patch within the major still flow. Sanctioned exception to the
no-blanket-ignore rule (engineering-handbook github-standards Pinning
Principle).
