style: corrects the use of ';' to improve readability

- remove unnecessary semicolon
and enable lint warning: unnecessary semicolon
help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.93.0/index.html#unnecessary_semicolon
- add `;` to the last statement for consitent formatting
and enable lint `clippy::semicolon_if_nothing_returned`
warning: consider adding a `;` to the last statement for consistent formatting
help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.93.0/index.html#semicolon_if_nothing_returned

src/model/helper/locked.rs

@@ -37,7 +37,7 @@ pub struct LockedHelper<'a>(
 impl<'a> Drop for LockedHelper<'a> {
 	fn drop(&mut self) {
 		// make it explicit that the mutexguard lives until here
-		drop(self.1.take())
+		drop(self.1.take());
 	}
 }
 

src/model/k2v/seen.rs

@@ -71,7 +71,7 @@ impl RangeSeenMarker {
 
 	pub fn canonicalize(&mut self) {
 		let self_vc = &self.vector_clock;
-		self.items.retain(|_sk, vc| vclock_gt(vc, self_vc))
+		self.items.retain(|_sk, vc| vclock_gt(vc, self_vc));
 	}
 
 	pub fn encode(&mut self) -> Result<String, Error> {