E2E: Fix media settings test on Atomic (#99413)

PR #99393 switched from clicking the link in Calypso to visiting
wp-admin directly. On Atomic this runs into the SSO login screen.
Copy-paste the workaround used in other tests to avoid that.

Author: anomiex

test/e2e/specs/media/settings__media.ts

@@ -43,6 +43,16 @@ describe( DataHelper.createSuiteTitle( 'Jetpack Settings: Media' ), function ()
 		} else {
 			await testAccount.authenticate( page );
 		}
+
+		// Atomic tests sites might have local users, so the Jetpack SSO login will
+		// show up when visiting the Jetpack dashboard directly. We can bypass it if
+		// we simulate a redirect from Calypso to WP Admin with a hardcoded referer.
+		// @see https://github.com/Automattic/jetpack/blob/12b3b9a4771169398d4e1982573aaec820babc17/projects/plugins/wpcomsh/wpcomsh.php#L230-L254
+		const siteUrl = testAccount.getSiteURL( { protocol: true } );
+		await page.goto( `${ siteUrl }wp-admin/`, {
+			timeout: 15 * 1000,
+			referer: 'https://wordpress.com/',
+		} );
 	} );
 
 	if ( envVariables.JETPACK_TARGET !== 'remote-site' ) {