Fix outdated year number from example code

Author: vejol

src/content/5/en/part5d.md

@@ -432,7 +432,7 @@ describe('Note app', () => {
   test('front page can be opened', async ({ page }) => {
     const locator = page.getByText('Notes')
     await expect(locator).toBeVisible()
-    await expect(page.getByText('Note app, Department of Computer Science, University of Helsinki 2024')).toBeVisible()
+    await expect(page.getByText('Note app, Department of Computer Science, University of Helsinki 2025')).toBeVisible()
   })
 
   test('user can log in', async ({ page }) => {

src/content/5/fi/osa5d.md

@@ -393,7 +393,7 @@ describe('Note app', () => {
   test('front page can be opened', async ({ page }) => {
     const locator = page.getByText('Notes')
     await expect(locator).toBeVisible()
-    await expect(page.getByText('Note app, Department of Computer Science, University of Helsinki 2024')).toBeVisible()
+    await expect(page.getByText('Note app, Department of Computer Science, University of Helsinki 2025')).toBeVisible()
   })
 
   test('user can log in', async ({ page }) => {