test_docs: Fix use of fixture when testing /team data.
test_docs: Fix use of fixture when testing /team data.

This fixes a bug in how 449f7e2d4beb117e73b8cdeb8f906163c1083689
managed its fixture file.

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