Enable clippy::needless_lifetimes (#8777)

This PR enables the
[`clippy::needless_lifetimes`](https://rust-lang.github.io/rust-clippy/master/index.html#/needless_lifetimes)
rule and fixes the outstanding violations.

Release Notes:

- N/A

crates/project/src/project.rs

@@ -1016,7 +1016,7 @@ impl Project {
     }
 
     /// Collect all worktrees, including ones that don't appear in the project panel
-    pub fn worktrees<'a>(&'a self) -> impl 'a + DoubleEndedIterator<Item = Model<Worktree>> {
+    pub fn worktrees(&self) -> impl '_ + DoubleEndedIterator<Item = Model<Worktree>> {
         self.worktrees
             .iter()
             .filter_map(move |worktree| worktree.upgrade())
@@ -9155,7 +9155,7 @@ fn subscribe_for_copilot_events(
     )
 }
 
-fn glob_literal_prefix<'a>(glob: &'a str) -> &'a str {
+fn glob_literal_prefix(glob: &str) -> &str {
     let mut literal_end = 0;
     for (i, part) in glob.split(path::MAIN_SEPARATOR).enumerate() {
         if part.contains(&['*', '?', '{', '}']) {