test(fetch-all): track supported node majors, drop node20 (#286)

pkg-fetch 3.6.x no longer publishes prebuilt node20 binaries (it ships
22/24/26), so test-42-fetch-all's hard-coded node20 request 404s in the
v3.6 remote cache and then fails the source-build fallback for win/macos
on a Linux host. This broke the entire test:host suite (the only suite
that runs this host-only test) after the pkg-fetch 3.6.3 bump.

Update the fetched node ranges to 22/24 to match the versions pkg-fetch
actually ships and the project's supported range (Node 22+).

Author: robertsLando

test/test-42-fetch-all/main.js

@@ -15,7 +15,7 @@ function nodeRangeToNodeVersion(nodeRange) {
 const platformsToTest = ['win', 'linux', 'macos'];
 
 for (const platform of platformsToTest) {
-  const nodeRanges = ['node20', 'node22'];
+  const nodeRanges = ['node22', 'node24'];
   for (const nodeRange of nodeRanges) {
     const archs = ['x64'];
     if (platform === 'linux' || platform === 'macos') archs.push('arm64');