chore(deps): update dependency rust to v1.83.0 (#139)

* chore(deps): update dependency rust to v1.83.0

* fix

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Hana <andywangsy@gmail.com>

Author: renovate[bot]

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.74.0"
+channel = "1.83.0"
 profile = "default"

src/decoder.rs

@@ -57,7 +57,7 @@ impl<'a> MappingsDecoder<'a> {
   }
 }
 
-impl<'a> Iterator for MappingsDecoder<'a> {
+impl Iterator for MappingsDecoder<'_> {
   type Item = Mapping;
 
   fn next(&mut self) -> Option<Self::Item> {

src/helpers.rs

@@ -312,7 +312,7 @@ pub fn stream_chunks_of_source_map<'a>(
 fn get_source<'a>(source_map: &SourceMap, source: &'a str) -> Cow<'a, str> {
   let source_root = source_map.source_root();
   match source_root {
-    Some(root) if root.is_empty() => Cow::Borrowed(source),
+    Some("") => Cow::Borrowed(source),
     Some(root) if root.ends_with('/') => {
       Cow::Owned(format!("{}{}", root, source))
     }