tests/git-scm.spec.js: loosen book redirect assertions

In 8781699 (tests: verify that the book URL redirects work,
2024-09-26), there were a couple of assertions that were added to the
Playwright test suite that look like the following:

    await page.goto(`${url}book/`)
    await expect(page).toHaveURL(`${url}book/en/v2`)

Or, in other words, expecting that going to the `/book` path relative to
the site's base URL would result in a redirect to `/book/env/v2`.

But this test breaks when the hosted site is configured to redirect HTTP
requests to HTTPS ones, like in this[1] example.

Loosen this assertion to just assert on the path component of the URL in
an identical fashion to other similar assertions in this test. Note
that a 'git grep toHaveURL' on the pre-image of this patch yields all
but two assertions which only look at the path component. The two that
don't are the ones which we modify here.

This should allow us to successfully run the Playwright tests in forks
whose deployment configuration is similar to the above.

[1]: https://github.com/ttaylorr/git-scm.com/actions/runs/11185173194/artifacts/2017238933

Signed-off-by: Taylor Blau <[email protected]>

Author: ttaylorr

tests/git-scm.spec.js

@@ -200,10 +200,10 @@ test('manual pages', async ({ page }) => {
 
 test('book', async ({ page }) => {
   await page.goto(`${url}book/`)
-  await expect(page).toHaveURL(`${url}book/en/v2`)
+  await expect(page).toHaveURL(/book\/en\/v2/)
 
   await page.goto(`${url}book`)
-  await expect(page).toHaveURL(`${url}book/en/v2`)
+  await expect(page).toHaveURL(/book\/en\/v2/)
 
   // the repository URL is correct
   await expect(page.getByRole('link', { name: 'hosted on GitHub' }))