ci: add node v20 (#209)

Author: ersachin3112

.github/workflows/nodejs.yml

@@ -60,7 +60,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [14.x, 16.x, 18.x, 19.x]
+        node-version: [14.x, 16.x, 18.x, 20.x]
         webpack-version: [latest]
 
     runs-on: ${{ matrix.os }}

test/loader.test.js

@@ -267,7 +267,7 @@ describe("source-map-loader", () => {
     expect(codeFromBundle.map).toBeUndefined();
     expect(codeFromBundle.code).toMatchSnapshot("code");
 
-    if (process.version.startsWith("v19")) {
+    if (process.version.startsWith("v20")) {
       expect(getWarnings(stats)[0]).toContain(
         `SyntaxError: Unexpected non-whitespace character after JSON at position 102`
       );