Update SSAARenderPass.js (#22798)

Fix file references

examples/jsm/postprocessing/SSAARenderPass.js

@@ -7,7 +7,7 @@ import {
 	UniformsUtils,
 	WebGLRenderTarget
 } from '../../../build/three.module.js';
-import { Pass, FullScreenQuad } from '../postprocessing/Pass.js';
+import { Pass, FullScreenQuad } from './Pass.js';
 import { CopyShader } from '../shaders/CopyShader.js';
 
 /**