Disable WASM bindings benchmarks on Github CI

Updated the wasm/README.md to describe how to manually run the benchmark tests.

PiperOrigin-RevId: 827881670
Change-Id: I1d524851d9f3f8182ecbfcc649bb9a5a61d716ae

wasm/tests/run_benchmarks.mjs

@@ -18,7 +18,7 @@ const jasmine = new Jasmine();
 
 jasmine.loadConfig({
   spec_dir: 'tests',
-  spec_files: ['**/*_test.ts'],
+  spec_files: ['benchmark_test.ts'],
   jsLoader: 'import',
   random: false,
   stopSpecOnExpectationFailure: false,

wasm/tests/run_tests.mjs

@@ -0,0 +1,40 @@
+// Copyright 2025 DeepMind Technologies Limited
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import Jasmine from 'jasmine';
+
+const jasmine = new Jasmine();
+
+jasmine.loadConfig({
+  spec_dir: 'tests',
+  spec_files: ['**/*_test.ts', '!benchmark_test.ts'],
+  jsLoader: 'import',
+  random: false,
+  stopSpecOnExpectationFailure: false,
+});
+
+try {
+  console.log('Starting Jasmine test run...');
+  const result = await jasmine.execute();
+  console.log(`Jasmine test run finished. Status: ${result.overallStatus}`);
+
+  if (result.overallStatus === 'failed') {
+    process.exit(1);
+  }
+
+} catch (error) {
+  console.error('Test runner script failed:', error);
+  process.exit(1);
+}
+