mypy: Add type parameter for IO in test-queue-worker-reload.
mypy: Add type parameter for IO in test-queue-worker-reload.

punchagan/zulip,jackrzhang/zulip,brainwane/zulip,eeshangarg/zulip,tommyip/zulip,punchagan/zulip,shubhamdhama/zulip,timabbott/zulip,rht/zulip,brainwane/zulip,andersk/zulip,eeshangarg/zulip,zulip/zulip,mahim97/zulip,synicalsyntax/zulip,timabbott/zulip,dhcrzf/zulip,rht/zulip,tommyip/zulip,jackrzhang/zulip,shubhamdhama/zulip,hackerkid/zulip,zulip/zulip,andersk/zulip,synicalsyntax/zulip,jackrzhang/zulip,jackrzhang/zulip,rishig/zulip,rishig/zulip,synicalsyntax/zulip,hackerkid/zulip,shubhamdhama/zulip,zulip/zulip,mahim97/zulip,tommyip/zulip,shubhamdhama/zulip,rht/zulip,eeshangarg/zulip,rishig/zulip,zulip/zulip,showell/zulip,hackerkid/zulip,synicalsyntax/zulip,synicalsyntax/zulip,eeshangarg/zulip,timabbott/zulip,synicalsyntax/zulip,andersk/zulip,rishig/zulip,andersk/zulip,shubhamdhama/zulip,dhcrzf/zulip,eeshangarg/zulip,tommyip/zulip,punchagan/zulip,synicalsyntax/zulip,zulip/zulip,shubhamdhama/zulip,zulip/zulip,eeshangarg/zulip,brainwane/zulip,jackrzhang/zulip,zulip/zulip,kou/zulip,dhcrzf/zulip,rishig/zulip,mahim97/zulip,andersk/zulip,showell/zulip,dhcrzf/zulip,timabbott/zulip,hackerkid/zulip,timabbott/zulip,shubhamdhama/zulip,hackerkid/zulip,punchagan/zulip,rht/zulip,hackerkid/zulip,showell/zulip,mahim97/zulip,hackerkid/zulip,showell/zulip,timabbott/zulip,kou/zulip,brainwane/zulip,mahim97/zulip,jackrzhang/zulip,dhcrzf/zulip,rishig/zulip,kou/zulip,punchagan/zulip,dhcrzf/zulip,brainwane/zulip,punchagan/zulip,rht/zulip,mahim97/zulip,showell/zulip,andersk/zulip,rht/zulip,rishig/zulip,tommyip/zulip,timabbott/zulip,brainwane/zulip,andersk/zulip,kou/zulip,kou/zulip,showell/zulip,jackrzhang/zulip,brainwane/zulip,dhcrzf/zulip,tommyip/zulip,kou/zulip,showell/zulip,eeshangarg/zulip,punchagan/zulip,rht/zulip,tommyip/zulip,kou/zulip