refactor(web): use fs/promises

lib/binding_web/binding.js

@@ -1163,16 +1163,11 @@ class Language {
     if (input instanceof Uint8Array) {
       bytes = Promise.resolve(input);
     } else {
-      const url = input;
-      if (
-        typeof process !== 'undefined' &&
-        process.versions &&
-        process.versions.node
-      ) {
-        const fs = require('fs');
-        bytes = Promise.resolve(fs.readFileSync(url));
+      if (globalThis.process?.versions?.node) {
+        const fs = require('fs/promises');
+        bytes = fs.readFile(input);
       } else {
-        bytes = fetch(url)
+        bytes = fetch(input)
           .then((response) => response.arrayBuffer()
             .then((buffer) => {
               if (response.ok) {

lib/binding_web/test/helper.js

@@ -1,4 +1,4 @@
-const Parser = require(`..`);
+const Parser = require('..');
 
 function languageURL(name) {
   return require.resolve(`../../../target/release/tree-sitter-${name}.wasm`);