vk_pipeline_cache: Small fixes to the pipeline cache

src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

@@ -539,12 +539,14 @@ void PipelineCache::LoadDiskResources(u64 title_id, std::stop_token stop_loading
                 ShaderPools pools;
                 auto pipeline{CreateComputePipeline(pools, key, envs.front(), false)};
 
+                {
                     std::lock_guard lock{state.mutex};
                     compute_cache.emplace(key, std::move(pipeline));
                     ++state.built;
                     if (state.has_loaded) {
                         callback(VideoCore::LoadCallbackStage::Build, state.built, state.total);
                     }
+                }
             });
         } else {
             GraphicsPipelineCacheKey key;
@@ -558,12 +560,14 @@ void PipelineCache::LoadDiskResources(u64 title_id, std::stop_token stop_loading
                 }
                 auto pipeline{CreateGraphicsPipeline(pools, key, MakeSpan(env_ptrs), false)};
 
+                {
                     std::lock_guard lock{state.mutex};
                     graphics_cache.emplace(key, std::move(pipeline));
                     ++state.built;
                     if (state.has_loaded) {
                         callback(VideoCore::LoadCallbackStage::Build, state.built, state.total);
                     }
+                }
             });
         }
         ++state.total;