fix: tests with nodejs 20

Author: RafaelGSS

index.js

@@ -3,6 +3,8 @@ const { isNodeVulnerable } = require('./index')
 
 async function t () {
   // of course, this test is fragile
+  assert.ok(await isNodeVulnerable('20.5.0'))
+  assert.ok(await isNodeVulnerable('20.0.0'))
   assert.ok(await isNodeVulnerable('19.0.0'))
   assert.ok(await isNodeVulnerable('18.0.0'))
   assert.ok(await isNodeVulnerable('14.0.0'))
@@ -14,7 +16,7 @@ async function t () {
   assert.rejects(() => isNodeVulnerable('lts'), /not get exactly one version/)
   assert.rejects(() => isNodeVulnerable('999'), /not get exactly one version/)
   assert.rejects(() => isNodeVulnerable('Unobtanium'), /not get exactly one version/) // i.e. not found
-  assert.rejects(() => isNodeVulnerable('20.0.0'), /not get exactly one version/)
+  assert.rejects(() => isNodeVulnerable('21.0.0'), /not get exactly one version/)
 
   // EOL
   assert.ok(await isNodeVulnerable('17.0.0'))