(shader/pipeline)_cache: Raise shader/pipeline cache version

Since the following commit: a83a5d2e4c , many games will refuse to boot unless the shader/pipeline cache has been invalidated.

src/video_core/renderer_opengl/gl_shader_cache.cpp

@@ -49,7 +49,7 @@ using VideoCommon::LoadPipelines;
 using VideoCommon::SerializePipeline;
 using Context = ShaderContext::Context;
 
-constexpr u32 CACHE_VERSION = 5;
+constexpr u32 CACHE_VERSION = 6;
 
 template <typename Container>
 auto MakeSpan(Container& container) {

src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

@@ -53,7 +53,7 @@ using VideoCommon::FileEnvironment;
 using VideoCommon::GenericEnvironment;
 using VideoCommon::GraphicsEnvironment;
 
-constexpr u32 CACHE_VERSION = 5;
+constexpr u32 CACHE_VERSION = 6;
 
 template <typename Container>
 auto MakeSpan(Container& container) {