ci: drop extraneous space

There      was      too      many      space.
8 jobs for topic/default/too-many-space in 7 minutes and 25 seconds (queued for 5 minutes and 13 seconds)
Status Name Job ID Coverage
  Test
passed checks-py2 #106274

00:03:07

passed checks-py3 #106275

00:01:46

passed doc #106280

00:00:26

manual pytype #106273
allowed to fail manual
passed tests-py2-cext #106276

00:03:29

passed tests-py2-pure #106277

00:05:24

passed tests-py3-cext #106278

00:05:19

passed tests-py3-pure #106279

00:05:28