ci: Replace depcheck with knip (#223)

Due to the deprecation of depcheck we migrated to knip, which is in active development and has more features. As a first step we only activate the checking of unused dependencies.

JIRA: CPOUI5FOUNDATION-1126

Author: werwolf2303

.github/workflows/ci.yml

@@ -31,7 +31,7 @@ jobs:
       run: npm run check-licenses
 
     - name: Perform dependency check
-      run: npm run depcheck
+      run: npm run knip
 
     - name: Perform build
       run: npm run build-test

.nycrc

@@ -3,7 +3,8 @@
 	"reporter": ["lcov", "text", "text-summary"],
 	"include": ["src/**"],
 	"exclude": [
-		"**/*.d.ts"
+		"**/*.d.ts",
+		"knip.config.js"
 	],
 	"check-coverage": true,
 	"statements": 85,

knip.config.js

@@ -0,0 +1,28 @@
+const config = {
+	/**
+	 * We only need dependency checking at the moment,
+	 * so all checks except for dependencies are turned off.
+	 */
+	rules: {
+		files: "off",
+		duplicates: "off",
+		classMembers: "off",
+		unlisted: "off",
+		binaries: "off",
+		unresolved: "off",
+		catalog: "off",
+		exports: "off",
+		types: "off",
+		enumMembers: "off",
+	},
+
+	ignoreDependencies: [
+		/**
+		 * Used via nyc ava --node-arguments="--experimental-loader=@istanbuljs/esm-loader-hook"
+		 * which is not detected by knip as a usage of this package
+		 */
+		"@istanbuljs/esm-loader-hook",
+	],
+};
+
+export default config;