Bump AssetsTools.NET from 3.0.0 to 3.0.4 - #676

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/checkout@v3, actions/setup-dotnet@v4, actions/upload-artifact@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Node.js 20 will be removed from the runner on September 16th, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Converting null literal or possible null value to non-nullable type.

Cannot convert null literal to non-nullable reference type.

'RoR2_Base_Common_GlobalTextures.texRampElites_psd' is obsolete: 'Use GameAssetPathsBetter instead.'

'RoR2_Base_Common_GlobalTextures' is obsolete: 'Use GameAssetPathsBetter instead.'

'AddressReferencedAsset.OnAddressReferencedAssetsLoaded' is obsolete: 'This event no longer runs after anything in particular, it gets invoked on RoR2Application.onLoad for backwards compatibility.'

'AddressReferencedAsset.OnAddressReferencedAssetsLoaded' is obsolete: 'This event no longer runs after anything in particular, it gets invoked on RoR2Application.onLoad for backwards compatibility.'

XML comment has syntactically incorrect cref attribute 'HasModdedBodyFlag(CharacterBody, ModdedBodyFlag))'

'AddressReferencedAsset.LoadAssetAsync()' is obsolete: 'If you need to implement this, implement a method that just returns Task.CompeltedTask, loading is now done via LoadAssetAsyncCoroutine instead.'

XML comment has syntactically incorrect cref attribute 'HasModdedBuffFlag(BuffDef, ModdedBuffFlag))'