Update PerceptionURP and fix multi-cam issues in URP

TestProjects/PerceptionURP/Packages/manifest.json

     "com.unity.package-validation-suite": "0.21.1-preview",
     "com.unity.perception": "file:../../../com.unity.perception",
     "com.unity.render-pipelines.universal": "10.6.0",
+    "com.unity.scripting.python": "4.0.0-exp.5",
     "com.unity.simulation.capture": "0.0.10-preview.16",
     "com.unity.simulation.core": "0.0.10-preview.21",
     "com.unity.test-framework": "1.1.27",

TestProjects/PerceptionURP/Packages/packages-lock.json

       },
       "url": "https://packages.unity.com"
     },
+    "com.unity.scripting.python": {
+      "version": "4.0.0-exp.5",
+      "depth": 0,
+      "source": "registry",
+      "dependencies": {},
+      "url": "https://packages.unity.com"
+    },
     "com.unity.searcher": {
       "version": "4.3.2",
       "depth": 2,

com.unity.perception/Runtime/GroundTruth/RenderPasses/UrpPasses/InstanceSegmentationUrpPass.cs

         {
             m_InstanceSegmentationPass = new InstanceSegmentationCrossPipelinePass(camera);
             ConfigureTarget(targetTexture, targetTexture.depthBuffer);
+            ConfigureClear(ClearFlag.None, Color.black);
             m_InstanceSegmentationPass.Setup();
         }
 

com.unity.perception/Runtime/GroundTruth/RenderPasses/UrpPasses/SemanticSegmentationUrpPass.cs

         {
             m_SemanticSegmentationCrossPipelinePass = new SemanticSegmentationCrossPipelinePass(camera, labelConfig);
             ConfigureTarget(targetTexture, targetTexture.depthBuffer);
+            ConfigureClear(ClearFlag.None, Color.black);
             m_SemanticSegmentationCrossPipelinePass.Setup();
         }
 

TestProjects/PerceptionURP/Assets/Scenes/MultiCamera.unity.meta

+fileFormatVersion: 2
+guid: dedd985999ab74747b95df66909e8029
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

TestProjects/PerceptionURP/Assets/Scenes/MultiCameraSettings.lighting

+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!850595691 &4890085278179872738
+LightingSettings:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: MultiCameraSettings
+  serializedVersion: 3
+  m_GIWorkflowMode: 1
+  m_EnableBakedLightmaps: 0
+  m_EnableRealtimeLightmaps: 1
+  m_RealtimeEnvironmentLighting: 1
+  m_BounceScale: 1
+  m_AlbedoBoost: 1
+  m_IndirectOutputScale: 1
+  m_UsingShadowmask: 1
+  m_BakeBackend: 1
+  m_LightmapMaxSize: 1024
+  m_BakeResolution: 40
+  m_Padding: 2
+  m_TextureCompression: 1
+  m_AO: 0
+  m_AOMaxDistance: 1
+  m_CompAOExponent: 1
+  m_CompAOExponentDirect: 0
+  m_ExtractAO: 0
+  m_MixedBakeMode: 2
+  m_LightmapsBakeMode: 1
+  m_FilterMode: 1
+  m_LightmapParameters: {fileID: 15204, guid: 0000000000000000f000000000000000, type: 0}
+  m_ExportTrainingData: 0
+  m_TrainingDataDestination: TrainingData
+  m_RealtimeResolution: 2
+  m_ForceWhiteAlbedo: 0
+  m_ForceUpdates: 0
+  m_FinalGather: 0
+  m_FinalGatherRayCount: 256
+  m_FinalGatherFiltering: 1
+  m_PVRCulling: 1
+  m_PVRSampling: 1
+  m_PVRDirectSampleCount: 32
+  m_PVRSampleCount: 500
+  m_PVREnvironmentSampleCount: 500
+  m_PVREnvironmentReferencePointCount: 2048
+  m_LightProbeSampleCountMultiplier: 4
+  m_PVRBounces: 2
+  m_PVRMinBounces: 2
+  m_PVREnvironmentMIS: 0
+  m_PVRFilteringMode: 2
+  m_PVRDenoiserTypeDirect: 0
+  m_PVRDenoiserTypeIndirect: 0
+  m_PVRDenoiserTypeAO: 0
+  m_PVRFilterTypeDirect: 0
+  m_PVRFilterTypeIndirect: 0
+  m_PVRFilterTypeAO: 0
+  m_PVRFilteringGaussRadiusDirect: 1
+  m_PVRFilteringGaussRadiusIndirect: 5
+  m_PVRFilteringGaussRadiusAO: 2
+  m_PVRFilteringAtrousPositionSigmaDirect: 0.5
+  m_PVRFilteringAtrousPositionSigmaIndirect: 2
+  m_PVRFilteringAtrousPositionSigmaAO: 1

TestProjects/PerceptionURP/Assets/Scenes/MultiCameraSettings.lighting.meta

+fileFormatVersion: 2
+guid: 75bbcdcbda2820b4a933657ce3456134
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 4890085278179872738
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

TestProjects/PerceptionURP/Assets/Scenes/SampleScene.meta

+fileFormatVersion: 2
+guid: bce914f0f01b5644c9e61e46a023e596
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: