integrations: Remove mutable default argument for config_options.
integrations: Remove mutable default argument for config_options.

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