Update Rust toolchain config

Remove rust-src as it is not required. Use a minimal profile with
clippy and rustfmt installed, instead of the default profile, as
rust-docs is not needed.

Signed-off-by: Tim Crawford <[email protected]>

Author: crawfxrd

rust-toolchain.toml

@@ -1,3 +1,4 @@
 [toolchain]
 channel = "nightly-2024-05-11"
-components = ["rust-src"]
+components = ["clippy", "rustfmt"]
+profile = "minimal"