add MSC4155 invite filtering to the invite permission config

Signed-off-by: June Strawberry <june@girlboss.ceo>

Author: x86pup

crates/ruma-events/Cargo.toml

@@ -48,6 +48,7 @@ unstable-msc3955 = ["unstable-msc1767"]
 unstable-msc3956 = ["unstable-msc1767"]
 unstable-msc4075 = ["unstable-msc3401"]
 unstable-msc4095 = []
+unstable-msc4155 = []
 unstable-msc4171 = []
 unstable-msc4268 = []
 unstable-msc4274 = []