Bump zulip test to e0dff1e7aa94049b96048c2204d26debe3dc6785 (#450)

This is to fix the customer testing in
flutter/flutter#165596
by picking up zulip/zulip-flutter#1443

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] All existing and new tests are passing.

Author: QuncCccccc

registry/zulip.test

@@ -2,7 +2,7 @@ [email protected]
 [email protected]
 
 fetch=git clone https://github.com/zulip/zulip-flutter.git tests
-fetch=git -C tests checkout 2117fe176aa740d00ff4e6be5ac38bd98eab8a3d
+fetch=git -C tests checkout e0dff1e7aa94049b96048c2204d26debe3dc6785
 
 setup.linux=tools/customer-testing/setup.sh