Added missing depth read in DOF pass declaration.

Fixes the omission of depth buffer read declaration in the pass arguments for the URP Depth of Field post-processing effect.
https://jira.unity3d.com/browse/UUM-68096

Author: Evergreen

Packages/com.unity.render-pipelines.universal/Runtime/Passes/PostProcessPassRenderGraph.cs

@@ -625,6 +625,7 @@ public void RenderDoFGaussian(RenderGraph renderGraph, UniversalResourceData res
                 passData.sourceTexture = source;
                 builder.UseTexture(source, AccessFlags.Read);
                 passData.depthTexture = resourceData.cameraDepthTexture;
+                builder.UseTexture(resourceData.cameraDepthTexture, AccessFlags.Read);
                 passData.material = m_Materials.gaussianDepthOfFieldCoC;
 
                 UniversalRenderer renderer = cameraData.renderer as UniversalRenderer;
@@ -843,6 +844,7 @@ public void RenderDoFBokeh(RenderGraph renderGraph, UniversalResourceData resour
                 passData.sourceTexture = source;
                 builder.UseTexture(source, AccessFlags.Read);
                 passData.depthTexture = resourceData.cameraDepthTexture;
+                builder.UseTexture(resourceData.cameraDepthTexture, AccessFlags.Read);
                 passData.material = m_Materials.bokehDepthOfFieldCoC;
 
                 UniversalRenderer renderer = cameraData.renderer as UniversalRenderer;