federation-api: Add missing compat feature

crates/ruma-federation-api/Cargo.toml

@@ -15,13 +15,14 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
 [features]
+compat = []
+client = []
+server = []
 unstable-exhaustive-types = []
 unstable-pre-spec = []
 unstable-msc2448 = []
 unstable-msc3618 = []
 unstable-msc3723 = []
-client = []
-server = []
 
 [dependencies]
 js_int = { version = "0.2.0", features = ["serde"] }

crates/ruma/Cargo.toml

@@ -85,6 +85,7 @@ full = [
 compat = [
     "ruma-common/compat",
     "ruma-client-api/compat",
+    "ruma-federation-api/compat",
     "ruma-signatures/compat",
     "ruma-state-res/compat",
 ]