Bump clippy.toml msrv to match rust-version in Cargo.toml

dtolnay · dtolnay · commit 6be2da9898d9 · 2022-08-12T21:41:11.000-07:00
warning: the MSRV in `clippy.toml` and `Cargo.toml` differ; using `1.34.0` from `clippy.toml`
diff --git a/.clippy.toml b/.clippy.toml
@@ -1 +1 @@
-msrv = "1.34.0"
+msrv = "1.38.0"
