feat: update dependencies, optimize

src/util_digest.rs

@@ -33,8 +33,8 @@ impl DigestWrite {
         }
     }
 
-    pub fn sha256() -> XResult<Self> {
-        Ok(Self { digest: Box::new(Sha256::new()) })
+    pub fn sha256() -> Self {
+        Self { digest: Box::new(Sha256::new()) }
     }
 
     pub fn digest(self) -> Vec<u8> {