build: install requires pnpm 9 and test node 22

[jason-ha]

pnpm 9 is required for current lockfile format
node 22 is required to run tests using glob filespec

[changeset-bot]

⚠️ No Changeset found

Latest commit: 12e38ec

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[andrewbranch]

Only the root-level package.json should be changed, as installing/running the published packages is intentionally supported down to v18.

[andrewbranch]

Thanks!