Merge pull request #213 from matrix-org/dependabot/cargo/duration-str-gte-0.11-and-lt-0.16

Author: sandhose

Cargo.toml

@@ -58,7 +58,7 @@ chrono = { version = "0.4.31", optional = true, default-features = false, featur
 ] }
 chrono-tz = { version = ">=0.6, <0.11.0", optional = true }
 chronoutil = { version = "0.2", optional = true }
-duration-str = { version = ">=0.11, <0.14", optional = true, default-features = false }
+duration-str = { version = ">=0.11, <0.16", optional = true, default-features = false }
 
 [dev-dependencies.tokio]
 version = "1.5"