really bump msrv to 1.82 (#266)

Author: dfrg

.github/workflows/main.yml

@@ -26,8 +26,8 @@ jobs:
     - name: Build with std
       run: cargo build
 
-    - name: MSRV Build (Rust 1.80)
-      run: cargo +1.80 build
+    - name: MSRV Build (Rust 1.82)
+      run: cargo +1.82 build
 
     - name: Run tests
       run: cargo test --verbose

Cargo.toml

@@ -2,7 +2,7 @@
 name = "harfrust"
 version = "0.3.0"
 edition = "2021"
-rust-version = "1.80"  # should match https://github.com/googlefonts/fontations/blob/main/Cargo.toml
+rust-version = "1.82"  # should match https://github.com/googlefonts/fontations/blob/main/Cargo.toml
 description = "A complete HarfBuzz shaping algorithm port to Rust."
 repository = "https://github.com/harfbuzz/harfrust"
 license = "MIT"

src/hb/ot_shaper_indic.rs

@@ -494,7 +494,7 @@ impl IndicShapePlan {
             && plan
                 .ot_map
                 .chosen_script(TableIndex::GSUB)
-                .map_or(true, |tag| tag.to_be_bytes()[3] != b'2');
+                .is_none_or(|tag| tag.to_be_bytes()[3] != b'2');
 
         // Use zero-context would_substitute() matching for new-spec of the main
         // Indic scripts, and scripts with one spec only, but not for old-specs.