Bump smol_str from 0.1.18 to 0.1.21 (#763)

Bumps [smol_str](https://github.com/rust-analyzer/smol_str) from 0.1.18 to 0.1.21.
- [Release notes](https://github.com/rust-analyzer/smol_str/releases)
- [Commits](https://github.com/rust-analyzer/smol_str/compare/v0.1.18...v0.1.21)

---
updated-dependencies:
- dependency-name: smol_str
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

2 files changed, 6 insertions, 3 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 69639c7f..042c6e48 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -987,9 +987,12 @@ checksum = "533494a8f9b724d33625ab53c6c4800f7cc445895924a8ef649222dcb76e938b"
 
 [[package]]
 name = "smol_str"
-version = "0.1.18"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b203e79e90905594272c1c97c7af701533d42adaab0beb3859018e477d54a3b0"
+checksum = "61d15c83e300cce35b7c8cd39ff567c1ef42dde6d4a1a38dbdbf9a59902261bd"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "strsim"
diff --git a/Cargo.toml b/Cargo.toml
index 8f1f8602..daaa3edd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ regex = "1.4.6"
 serde = { version = "1.0.118", features = ["derive"] }
 serde_json = "1.0.70"
 shell-words = "1.0.0"
-smol_str = "0.1.18"
+smol_str = "0.1.21"
 structopt = "0.3.25"
 unicode-segmentation = "1.8.0"
 unicode-width = "0.1.9"