Override this method to destroy RenderPipeline cached state.
This function is called whenever an IRenderPipelineAsset goes out of scope; on entering or exiting Play Mode; and on Editor or application shutdown.
Call this when you manually want to force the RenderPipeline to be built. This is necessary when modifying the pipeline outside of the Asset pipeline. For example, you might create a custom Inspector that does not use SerializedProperties. In such cases, make the necessary modifications and then call SetAssetDirty on the RenderPipeline to ensure it gets rebuilt.