Update genai/test/textgen-with-multi-img.test.js

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: Guiners

genai/test/textgen-with-multi-img.test.js

@@ -21,7 +21,7 @@ const projectId = process.env.CAIP_PROJECT_ID;
 const sample = require('../text-generation/textgen-with-multi-img.js');
 
 describe('textgen-with-multi-img', async () => {
-  it('should generate text content from a text prompt and multiple images.', async () => {
+  it('should generate text content from a text prompt and multiple images', async () => {
     const output = await sample.generateContent(projectId);
     assert(output.length);
   });