Bumped up Rust and dependency versions.

Use new Rust 1.77 C-string literals.
Addressed Clippy warnings.

Cargo.toml

@@ -1,16 +1,16 @@
 [package]
 name = "cybervision"
-version = "0.19.0"
+version = "0.19.1"
 edition = "2021"
 authors = ["Dmitry Zolotukhin <[email protected]>"]
 repository = "https://github.com/zlogic/cybervision"
 license = "Apache-2.0"
-rust-version = "1.75"
+rust-version = "1.77"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-image = { version = "0.24", default_features = false, features = ["png", "jpeg", "tiff", "jpeg_rayon"] }
+image = { version = "0.25", default_features = false, features = ["png", "jpeg", "tiff", "rayon"] }
 indicatif = { version = "0.17", default_features = false }
 rayon = "*"
 rand = { version = "0.8", default_features = false, features = ["std", "std_rng", "small_rng"] }

src/correlation/gpu/metal.rs

@@ -429,10 +429,10 @@ impl super::Device for Device {
 impl Drop for DeviceContext {
     fn drop(&mut self) {
         autoreleasepool(|| {
-            self.device.as_mut().map(|device| {
+            if let Some(device) = self.device.as_mut() {
                 device.pipelines.clear();
                 device.buffers = None;
-            });
+            };
             self.device = None;
         });
     }

src/correlation/gpu/vulkan.rs

@@ -403,8 +403,8 @@ impl Device {
     }
 
     unsafe fn init_vk(entry: &ash::Entry) -> VkResult<ash::Instance> {
-        let app_name = CStr::from_bytes_with_nul_unchecked(b"Cybervision\0");
-        let engine_name = CStr::from_bytes_with_nul_unchecked(b"cybervision\0");
+        let app_name = c"Cybervision";
+        let engine_name = c"cybervision";
         let appinfo = vk::ApplicationInfo::builder()
             .application_name(app_name)
             .application_version(0)
@@ -791,7 +791,7 @@ impl Device {
     ) -> Result<HashMap<ShaderModuleType, ShaderPipeline>, Box<dyn error::Error>> {
         let shader_modules = Device::load_shaders(device)?;
 
-        let main_module_name = CStr::from_bytes_with_nul_unchecked(b"main\0");
+        let main_module_name = c"main";
 
         let pipeline_create_info = shader_modules
             .iter()