Update to mmap-bitvec 0.4.1

Author: boydgreenfield

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: 1.69.0
+          toolchain: stable
           override: true
 
       - name: version info

Cargo.toml

@@ -17,7 +17,7 @@ exclude = [
 
 [dependencies]
 bincode = "1"
-mmap-bitvec = "0.4.0"
+mmap-bitvec = "0.4.1"
 murmurhash3 = "0.0.5"
 serde = { version = "1.0", features = ["derive"] }
 once_cell = "1.3.1"