Re-align to supported Node.js release lines (drop v20, add v26)

[MikeMcC399]

What would you like?

Re-align to the current set of Node.js release lines

22, 24, 25

and to Node.js 26 when available

Why is this needed?

package.json

corepack/package.json

Lines 12 to 14 in 32fd150

	"engines": {
	"node": "^20.10.0 || ^22.11.0 || >=24.0.0"
	},

and .github/workflows/ci.yml

corepack/.github/workflows/ci.yml

Lines 48 to 52 in 32fd150

	matrix:
	node:
	- 20
	- 22
	- 24

define which Node.js versions are allowed / tested.

Node.js Releases provides information on the current status of each release line.

Node.js	Status	Allowed	CI tested
20	planned EOL	yes	yes
22	Maintenance LTS	yes	yes
24	Active LTS	yes	yes
25	planned EOL	yes	no
26	planned as Current	yes	no

Other

Prerequisites

Action	Condition
Drop Node.js 20 support	EOL on 2026-04-30
Drop Node.js 25 support	EOL on 2026-06-01
Add Node.js 25 to CI	PR #817
Add Node.js 26 to CI	PR #817 & Node.js 26 release 2026-04-28?

[MikeMcC399]

I can offer to submit one or more PRs for these changes when each of the prerequisites have been fulfilled, either waiting for all prerequisities or making changes in stages.