Update sorted_vector_map

Summary: The most recent fbsource version was just released onto crates.io, so builds are failing until we update

Reviewed By: iguridi

Differential Revision: D57091891

fbshipit-source-id: b7a44252e42ad72f81378e50cd404818b454fcbf

shim/third-party/rust/Cargo.toml

@@ -22,7 +22,7 @@ path = "top/main.rs"
 
 gazebo = {version = "0.8.1", features = ["str_pattern_extensions"]}
 fbinit = "0.1"
-sorted_vector_map = "0.1"
+sorted_vector_map = "0.2"
 watchman_client = "0.8.0"
 
 annotate-snippets = { version = "0.9.0", features = ["color"] }