improve output for serial number

When number <= 9, it looks so tidy. But when number of items > 9, will get:

(7/17) Upgrading busybox-suid (1.36.1-r1 -> 1.36.1-r2)
(8/17) Upgrading musl-utils (1.2.4-r0 -> 1.2.4-r1)
(9/17) Upgrading libmagic (5.44-r4 -> 5.45-r0)
(10/17) Upgrading file (5.44-r4 -> 5.45-r0)
(11/17) Upgrading musl-dev (1.2.4-r0 -> 1.2.4-r1)
(12/17) Upgrading busybox-doc (1.36.1-r1 -> 1.36.1-r2)

It would be pretty if output like below:

( 7/17) Upgrading busybox-suid (1.36.1-r1 -> 1.36.1-r2)
( 8/17) Upgrading musl-utils (1.2.4-r0 -> 1.2.4-r1)
( 9/17) Upgrading libmagic (5.44-r4 -> 5.45-r0)
(10/17) Upgrading file (5.44-r4 -> 5.45-r0)
(11/17) Upgrading musl-dev (1.2.4-r0 -> 1.2.4-r1)
(12/17) Upgrading busybox-doc (1.36.1-r1 -> 1.36.1-r2)

So does number of items >= 100 or more.