test: add tests for Commitlint v20

Author: jdbruijn

.github/renovate.json

@@ -6,9 +6,7 @@
       "description": "Disable updates for aliased commitlint packages with a final version",
       "matchDepTypes": ["devDependencies"],
       "enabled": false,
-      "matchPackageNames": [
-        "/^@commitlint/(lint|load)\\-(9|10|11|12|13|14|15|16|17)\\.x/"
-      ]
+      "matchPackageNames": ["/^@commitlint/(lint|load)\\-(19)\\.x/"]
     },
     {
       "description": "Group commitlint peer dependencies as feat commit",

package-lock.json

@@ -188,8 +188,10 @@
     "@ava/typescript": "6.0.0",
     "@commitlint/cli": "20.0.0",
     "@commitlint/config-conventional": "20.0.0",
-    "@commitlint/lint-19.x": "npm:@commitlint/lint@20.0.0",
-    "@commitlint/load-19.x": "npm:@commitlint/load@20.0.0",
+    "@commitlint/lint-19.x": "npm:@commitlint/lint@19.8.1",
+    "@commitlint/load-19.x": "npm:@commitlint/load@19.8.1",
+    "@commitlint/lint-20.x": "npm:@commitlint/lint@20.0.0",
+    "@commitlint/load-20.x": "npm:@commitlint/load@20.0.0",
     "@commitlint/rules": "20.0.0",
     "@commitlint/types": "20.0.0",
     "@semantic-release/changelog": "6.0.3",
@@ -207,7 +209,7 @@
     "xo": "1.2.2"
   },
   "peerDependencies": {
-    "@commitlint/lint": ">=19 <20"
+    "@commitlint/lint": ">=19 <21"
   },
   "engines": {
     "node": ">=20"

package.json

@@ -2,6 +2,8 @@ import {type RuleOutcome} from '@commitlint/types';
 import test from 'ava';
 import load19x from '@commitlint/load-19.x';
 import lint19x from '@commitlint/lint-19.x';
+import load20x from '@commitlint/load-20.x';
+import lint20x from '@commitlint/lint-20.x';
 import {rules} from './rules.js';
 import * as plugin from './index.js';
 
@@ -12,6 +14,7 @@ test('exports rules', (t) => {
 /* eslint-disable @typescript-eslint/naming-convention */
 const versions = {
   '19.x': {load: load19x, lint: lint19x},
+  '20.x': {load: load20x, lint: lint20x},
 } as const;
 /* eslint-enable @typescript-eslint/naming-convention */
 
@@ -32,6 +35,7 @@ const loadPlugin = test.macro<[keyof typeof versions]>({
 });
 
 test(loadPlugin, '19.x');
+test(loadPlugin, '20.x');
 
 const lintUsingPluginRules = test.macro<[keyof typeof versions]>({
   async exec(t, version) {
@@ -77,3 +81,4 @@ const lintUsingPluginRules = test.macro<[keyof typeof versions]>({
 });
 
 test(lintUsingPluginRules, '19.x');
+test(lintUsingPluginRules, '20.x');