fix(deps): update rust crate axum to 0.8 (#67)

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

Author: renovate[bot]

Cargo.toml

@@ -21,7 +21,7 @@ name = "axum_streams"
 path = "src/lib.rs"
 
 [dependencies]
-axum = { version = "0.7" }
+axum = { version = "0.8" }
 bytes = "1"
 http = "1"
 http-body = "1"