Enable MSC4306 tests in CI for Synapse

Author: reivilibre

.github/workflows/ci.yaml

@@ -42,7 +42,7 @@ jobs:
           - homeserver: Synapse
             repo: element-hq/synapse
             tags: synapse_blacklist
-            packages: ./tests/msc3874 ./tests/msc3902
+            packages: ./tests/msc3874 ./tests/msc3902 ./tests/msc4306
             env: "COMPLEMENT_ENABLE_DIRTY_RUNS=1 COMPLEMENT_SHARE_ENV_PREFIX=PASS_ PASS_SYNAPSE_COMPLEMENT_DATABASE=sqlite"
             timeout: 20m