allow sampler creation to return OOMs

This is to preserve the current behavior as tested by the `SAMPLER_CREATION_FAILURE` test.

This is not spec compliant but it's unclear what we should do instead. I opened https://github.com/gpuweb/gpuweb/issues/5142 to figure out what we should do.

wgpu-core/src/device/resource.rs

@@ -1633,7 +1633,7 @@ impl Device {
         };
 
         let raw = unsafe { self.raw().create_sampler(&hal_desc) }
-            .map_err(|e| self.handle_hal_error(e))?;
+            .map_err(|e| self.handle_hal_error_with_nonfatal_oom(e))?;
 
         let sampler = Sampler {
             raw: ManuallyDrop::new(raw),