…ants.js

The deploy job's safety-net sed for the plugin Version: header and the
WPGRAPHQL_*_VERSION constant was hardcoded to wp-graphql.php +
constants.php — i.e., the core plugin only. wp-graphql-ide,
wp-graphql-smart-cache, and wp-graphql-acf had no equivalent backstop,
which is the latent reason the IDE 5.0.0 release was able to ship a
trunk with `Version: 4.5.0` inside `/tags/5.0.0/` once
update-release-pr.yml failed mid-run.

Replace the hardcoded sed with a call to update-version-constants.js —
the same script update-release-pr.yml already uses to do the equivalent
bump at release-PR creation time. The script reads constantMap from
release-please-config.json per component, so every plugin defined in
the config is covered (including any future fifth plugin added to the
manifest). Locally smoke-tested against fixture build dirs for all four
existing plugins; each main `Version:` header and each constant updates
correctly, including the IDE's multi-space `Version:           X.Y.Z`
header format and core's two-place Version + @Version docblock.

Parameterize the post-bump verify block off the same constantMap so the
sanity grep follows the same single source of truth.