test_home: Use assertLogs to test info logs by do_soft_deactivate_users.
test_home: Use assertLogs to test info logs by do_soft_deactivate_users.

This will verify logs without spamming test-backend output.

brainwane/zulip,hackerkid/zulip,hackerkid/zulip,zulip/zulip,brainwane/zulip,showell/zulip,eeshangarg/zulip,eeshangarg/zulip,andersk/zulip,eeshangarg/zulip,hackerkid/zulip,eeshangarg/zulip,zulip/zulip,punchagan/zulip,zulip/zulip,showell/zulip,showell/zulip,punchagan/zulip,eeshangarg/zulip,kou/zulip,rht/zulip,rht/zulip,andersk/zulip,hackerkid/zulip,andersk/zulip,eeshangarg/zulip,rht/zulip,rht/zulip,punchagan/zulip,rht/zulip,showell/zulip,andersk/zulip,zulip/zulip,showell/zulip,eeshangarg/zulip,brainwane/zulip,brainwane/zulip,hackerkid/zulip,kou/zulip,punchagan/zulip,zulip/zulip,andersk/zulip,brainwane/zulip,kou/zulip,andersk/zulip,hackerkid/zulip,zulip/zulip,kou/zulip,hackerkid/zulip,punchagan/zulip,brainwane/zulip,punchagan/zulip,kou/zulip,kou/zulip,rht/zulip,showell/zulip,punchagan/zulip,andersk/zulip,showell/zulip,brainwane/zulip,zulip/zulip,kou/zulip,rht/zulip