[e2e tests] External sites - update products/block-editor folder (#50960)

* Include products/block-editor into default-pressable set of tests

* Wait for `Block: Product attributes` before proceeding

* Add changefile(s) from automation for the following project(s): woocommerce

* Put comment on why to wait for the element

* Fix issue caught by Lint - @woocommerce/plugin-woocommerce

* Fix linting error

---------

Co-authored-by: github-actions <github-actions@github.com>

plugins/woocommerce/changelog/50960-e2e-external-sites-update-products-block-editor

@@ -0,0 +1,4 @@
+Significance: patch
+Type: update
+
+Update `products/block-editor` e2e tests, so they are passing against Pressable env.

plugins/woocommerce/tests/e2e-pw/envs/default-pressable/playwright.config.js

@@ -10,6 +10,7 @@ config = {
 			testMatch: [
 				'**/basic.spec.js',
 				'**/activate-and-setup/**/*.spec.js',
+				'**/merchant/products/block-editor/**/*.spec.js',
 			],
 			grepInvert: /@skip-on-default-pressable/,
 		},

plugins/woocommerce/tests/e2e-pw/tests/merchant/products/block-editor/product-attributes-block-editor.spec.js

@@ -373,6 +373,13 @@ test(
 			await expect(
 				async () => {
 					await page.reload();
+					// Waiting for the "Block: Product attributes" will ensure
+					// that test will pass against the Pressable environment
+					await expect(
+						page.locator(
+							`[aria-label="Block: Product attributes"]`
+						)
+					).toBeVisible();
 					await page.getByRole( 'button', { name: 'Edit' } ).click();
 					await expect(
 						page.locator(