node tests: Fix zjquery leaks in compose_actions.
node tests: Fix zjquery leaks in compose_actions.

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