Bump gleam from 0.9.2 to 0.11.0

Bumps [gleam](https://github.com/servo/gleam) from 0.9.2 to 0.11.0.
- [Release notes](https://github.com/servo/gleam/releases)
- [Commits](https://github.com/servo/gleam/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

ports/glutin/Cargo.toml

@@ -52,7 +52,7 @@ backtrace = "0.3"
 clipboard = "0.5"
 euclid = "0.20"
 getopts = "0.2.11"
-gleam = "0.9"
+gleam = "0.11"
 keyboard-types = "0.4.3"
 lazy_static = "1"
 libservo = {path = "../../components/servo"}

ports/gstplugin/Cargo.toml

@@ -17,7 +17,7 @@ path = "lib.rs"
 [dependencies]
 crossbeam-channel = "0.4"
 euclid = "0.20"
-gleam = "0.9"
+gleam = "0.11"
 glib = "0.9"
 gstreamer = "0.15"
 gstreamer-base = "0.15"