fix compiled on proc_macro_span_shrink was removed

rust-lang/rust/issues/113152 error[E0635]: unknown feature `proc_macro_span_shrink` --> ~/.cargo/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/src/lib.rs:92:30 | 92 | feature(proc_macro_span, proc_macro_span_shrink) | ^^^^^^^^^^^^^^^^^^^^^^ Signed-off-by: wineway <wangyuweihx@gmail.com>
wineway · Feb 2, 2024 · 4b93461 · 4b93461
1 parent 5900554
commit 4b93461
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diff --git a/Cargo.lock b/Cargo.lock
diff --git a/crates/fennel-language-server/Cargo.toml b/crates/fennel-language-server/Cargo.toml
@@ -17,3 +17,4 @@ tokio = { version = "1.25.0", features = [
   "net",
 ] }
 tower-lsp = "0.18.0"
+proc-macro2 = "1.0.78"