Update error messages in e2e tests (#12662)

Author: vicb

packages/vite-plugin-cloudflare/e2e/remote-bindings.test.ts

@@ -183,7 +183,7 @@ if (isWindows) {
 
 				expect(await proc.exitCode).not.toBe(0);
 				expect(proc.stderr).toContain(
-					"R2 bucket 'non-existent-r2-bucket' not found. Please use a different name and try again. [code: 10085]"
+					"R2 bucket 'non-existent-r2-bucket' not found. Verify the bucket exists in your account and that the bucket_name in your configuration is correct. [code: 10085]"
 				);
 				expect(proc.stderr).toContain(
 					"Error: Failed to start the remote proxy session. There is likely additional logging output above."

packages/wrangler/e2e/remote-binding/dev-remote-bindings.test.ts

@@ -209,7 +209,7 @@ describe.skipIf(!CLOUDFLARE_ACCOUNT_ID)(
 				await vi.waitFor(
 					() =>
 						expect(worker.currentOutput).toContain(
-							"Could not resolve service binding 'REMOTE_WORKER'. Target script 'non-existent-service-binding' not found."
+							"Service binding 'REMOTE_WORKER' references Worker 'non-existent-service-binding' which was not found."
 						),
 					7_000
 				);