bump rls

Author: pietroalbini

Cargo.lock

@@ -3097,15 +3097,15 @@ dependencies = [
  "anyhow",
  "cargo",
  "cargo-util",
- "cargo_metadata 0.12.0",
+ "cargo_metadata 0.14.0",
  "clippy_lints",
  "crossbeam-channel",
  "difference",
- "env_logger 0.7.1",
+ "env_logger 0.9.0",
  "futures 0.3.12",
  "heck",
  "home",
- "itertools 0.9.0",
+ "itertools 0.10.1",
  "jsonrpc-core",
  "lazy_static",
  "log",
@@ -3114,7 +3114,7 @@ dependencies = [
  "num_cpus",
  "ordslice",
  "racer",
- "rand 0.7.3",
+ "rand 0.8.4",
  "rayon",
  "regex",
  "rls-analysis",