⬆️ Bump MSRV from 1.85.0 to 1.89.0

To get temporary lifetime extension, xref rust-lang/rust#140593

Author: weiji14

Cargo.toml

@@ -6,7 +6,7 @@ description = "Accelerating GeoTIFF readers with Rust."
 readme = "README.md"
 repository = "https://github.com/weiji14/foss4g2025"
 license = "MPL-2.0"
-rust-version = "1.85.0"
+rust-version = "1.89.0"
 authors = ["Wei Ji <23487320+weiji14@users.noreply.github.com>"]
 
 [dependencies]

benches/read_geotiff.rs

@@ -36,7 +36,7 @@ use url::Url;
 
 // gdal
 fn read_geotiff_gdal(fpath: &str, n_threads: usize) {
-    let n_threads: String = format!("NUM_THREADS={}", n_threads);
+    let n_threads: String = format!("NUM_THREADS={n_threads}");
     let options = DatasetOptions {
         open_flags: GdalOpenFlags::default(),
         allowed_drivers: Some(&["LIBERTIFF"]),