chore: fix typo (#2994)

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Fixed typo in comment.

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- [x] I am happy for maintainers to push small adjustments to this PR,
to speed up the review cycle
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same thing

Author: hezhizhen

crates/atuin/src/command/client/search/engines/skim.rs

@@ -203,7 +203,7 @@ fn path_dist(a: &Path, b: &Path) -> usize {
 
     let mut dist = 0;
 
-    // pop a until there's a common anscestor
+    // pop a until there's a common ancestor
     while !b.starts_with(&a) {
         dist += 1;
         a.pop();