yml: Fix trailing whitespace in .circleci/config.yml.
yml: Fix trailing whitespace in .circleci/config.yml.

Removed trailing whitespace in .circleci/config.yml.

timabbott/zulip,hackerkid/zulip,shubhamdhama/zulip,zulip/zulip,punchagan/zulip,andersk/zulip,timabbott/zulip,rht/zulip,hackerkid/zulip,shubhamdhama/zulip,shubhamdhama/zulip,kou/zulip,brainwane/zulip,eeshangarg/zulip,synicalsyntax/zulip,timabbott/zulip,andersk/zulip,punchagan/zulip,showell/zulip,shubhamdhama/zulip,showell/zulip,hackerkid/zulip,showell/zulip,hackerkid/zulip,synicalsyntax/zulip,zulip/zulip,showell/zulip,zulip/zulip,andersk/zulip,rht/zulip,punchagan/zulip,brainwane/zulip,timabbott/zulip,timabbott/zulip,synicalsyntax/zulip,andersk/zulip,eeshangarg/zulip,shubhamdhama/zulip,kou/zulip,punchagan/zulip,hackerkid/zulip,hackerkid/zulip,andersk/zulip,synicalsyntax/zulip,rht/zulip,shubhamdhama/zulip,synicalsyntax/zulip,rht/zulip,shubhamdhama/zulip,rht/zulip,kou/zulip,kou/zulip,eeshangarg/zulip,showell/zulip,punchagan/zulip,punchagan/zulip,rht/zulip,timabbott/zulip,eeshangarg/zulip,zulip/zulip,zulip/zulip,kou/zulip,synicalsyntax/zulip,eeshangarg/zulip,andersk/zulip,brainwane/zulip,hackerkid/zulip,rht/zulip,kou/zulip,kou/zulip,punchagan/zulip,brainwane/zulip,brainwane/zulip,timabbott/zulip,showell/zulip,zulip/zulip,eeshangarg/zulip,brainwane/zulip,zulip/zulip,andersk/zulip,showell/zulip,eeshangarg/zulip,synicalsyntax/zulip,brainwane/zulip