Lint: clippy's collapsible_match passes on Rust 1.95

cargo +1.95 clippy --workspace --all-targets --release -- -D warnings
stopped on seven `if` blocks that clippy wants folded into their match
arm (psd, text, effects x2, pdf x2, render). Each becomes a match guard.
The behaviour is unchanged: when a guard is false the value falls through
to arms that can't match it and then to `_ => {}`. The one exception is
the PDF PostScript calculator, where a `{` past the nesting limit would
fall through to the operator arm; it keeps its own no-op arm, so it is
still skipped rather than pushed as an operator.

crates/render/src/masks.rs

@@ -114,10 +114,8 @@ pub fn shapes(ctx: &EvalCtx, layer: &Layer) -> Vec<effectcraft_effects::MaskShap
         let mut pts: Vec<[f64; 2]> = Vec::new();
         let mut closed = false;
         kurbo::flatten(path.iter(), 0.25, |el| match el {
-            effectcraft_path::PathEl::MoveTo(p) | effectcraft_path::PathEl::LineTo(p) => {
-                if pts.last() != Some(&[p.x, p.y]) {
-                    pts.push([p.x, p.y]);
-                }
+            effectcraft_path::PathEl::MoveTo(p) | effectcraft_path::PathEl::LineTo(p) if pts.last() != Some(&[p.x, p.y]) => {
+                pts.push([p.x, p.y]);
             }
             effectcraft_path::PathEl::ClosePath => closed = true,
             _ => {}