Revert "Revert "chore: Bump Rust version to 1.77 (#9631)"" (#9672)

Reverts zed-industries/zed#9658, as the Docker image is now available.

Release notes:

- N/A

crates/project/src/task_inventory.rs

@@ -590,7 +590,7 @@ mod tests {
             (TaskSourceKind::UserInput, common_name.to_string()),
             (TaskSourceKind::UserInput, "user_input".to_string()),
         ];
-        let worktree_1_tasks = vec![
+        let worktree_1_tasks = [
             (
                 TaskSourceKind::Worktree {
                     id: worktree_1,
@@ -606,7 +606,7 @@ mod tests {
                 "worktree_1".to_string(),
             ),
         ];
-        let worktree_2_tasks = vec![
+        let worktree_2_tasks = [
             (
                 TaskSourceKind::Worktree {
                     id: worktree_2,