Fix clippy::unnecessary_map_or warning

```
error: this `map_or` is redundant
   --> src/cli.rs:509:16
    |
509 |             if optional_deps.as_ref().map_or(false, |d| d.contains(f)) {
    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use is_some_and instead: `optional_deps.as_ref().is_some_and(|d| d.contains(f))`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_map_or
    = note: `-D clippy::unnecessary-map-or` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::unnecessary_map_or)]`
```

src/cli.rs

@@ -506,7 +506,7 @@ impl Args {
             if features.contains(f) {
                 bail!("feature `{f}` specified by both --exclude-features and --features");
             }
-            if optional_deps.as_ref().map_or(false, |d| d.contains(f)) {
+            if optional_deps.as_ref().is_some_and(|d| d.contains(f)) {
                 bail!("feature `{f}` specified by both --exclude-features and --optional-deps");
             }
             if group_features.iter().any(|v| v.matches(f)) {