Add back the parent paths which got lost in the

Maybe workspace relative paths here would be cleaner?

Author: DJMcNab

examples/runners/wgpu/builder/src/main.rs

@@ -26,10 +26,14 @@ fn build_shader(
 }
 
 fn main() -> Result<(), Box<dyn Error>> {
-    build_shader("../../shaders/sky-shader", true, &[])?;
+    build_shader("../../../shaders/sky-shader", true, &[])?;
     build_shader("../../shaders/simplest-shader", false, &[])?;
     // We need the int8 capability for using `Option`
-    build_shader("../../shaders/compute-shader", false, &[Capability::Int8])?;
-    build_shader("../../shaders/mouse-shader", false, &[])?;
+    build_shader(
+        "../../../shaders/compute-shader",
+        false,
+        &[Capability::Int8],
+    )?;
+    build_shader("../../../shaders/mouse-shader", false, &[])?;
     Ok(())
 }