chore(deps): bump prost from 0.11.9 to 0.12.4 (#1488)

Author: dependabot[bot]

Cargo.lock

@@ -131,7 +131,7 @@ byte_string = "1.0"
 byteorder = "1.5"
 rand = { version = "0.8", features = ["small_rng"] }
 sled = { version = "0.34.7", features = ["compression"], optional = true }
-prost = { version = "0.11.9", optional = true }
+prost = { version = "0.12.4", optional = true }
 
 futures = "0.3"
 tokio = { version = "1.5", features = [