Update rspirv to 0.10 (#724)

Author: khyperia

Cargo.lock

@@ -38,7 +38,7 @@ syn = { version = "1", features = ["visit", "visit-mut"] }
 ar = "0.9.0"
 bimap = "0.6"
 indexmap = "1.6.0"
-rspirv = { git = "https://github.com/gfx-rs/rspirv.git", rev = "c2a11ba7961fa7c675800f50c1903f0e96c633f8" }
+rspirv = "0.10"
 rustc-demangle = "0.1.18"
 sanitize-filename = "0.3"
 serde = { version = "1.0", features = ["derive"] }