Revert "Give API server wait.ForeverTestTimeout minutes to come up"

This reverts commit 3c9cb1d.

Author: ntnn

staging/src/github.com/kcp-dev/sdk/testing/server/ready.go

@@ -53,7 +53,7 @@ func WaitForReady(ctx context.Context, cfg *rest.Config) error {
 
 func waitForEndpoint(ctx context.Context, client *rest.RESTClient, endpoint string) error {
 	var lastError error
-	if err := wait.PollUntilContextTimeout(ctx, 100*time.Millisecond, wait.ForeverTestTimeout, true, func(ctx context.Context) (bool, error) {
+	if err := wait.PollUntilContextTimeout(ctx, 100*time.Millisecond, time.Minute, true, func(ctx context.Context) (bool, error) {
 		req := rest.NewRequest(client).RequestURI(endpoint)
 		if _, err := req.Do(ctx).Raw(); err != nil {
 			lastError = fmt.Errorf("error contacting %s: failed components: %v", req.URL(), unreadyComponentsFromError(err))