Fix memory leak of a procedural model · effekseer/Effekseer@9a7aed3

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/setup-python@v2, actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/setup-python@v2, actions/checkout@v2, actions/setup-dotnet@v3. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

Dev/Editor/EffekseerCore/Data/Value/Gradient.cs#L27

'Gradient.State' overrides Object.Equals(object o) but does not override Object.GetHashCode()

Dev/Editor/EffekseerCore/IO/EfkPkg.cs#L525

'MD5CryptoServiceProvider' is obsolete: 'Derived cryptographic types are obsolete. Use the Create method on the base type instead.' (https://aka.ms/dotnet-warnings/SYSLIB0021)

Dev/Editor/EffekseerCore/Data/Value/Vector3DWithRandom.cs#L56

The event 'Vector3DWithRandom.OnChanged' is never used

Dev/Editor/EffekseerCore/Data/NodeBase.cs#L442

The event 'NodeBaseValues.OnChanged' is never used

Dev/Editor/EffekseerCore/Data/Value/Vector3D.cs#L43

The event 'Vector3D.OnChanged' is never used

Dev/Editor/EffekseerCore/InternalScript/Compiler.cs#L40

Field 'Operator.Type' is never assigned to, and will always have its default value

Dev/Editor/EffekseerCore/Data/Value/Vector4D.cs#L48

The event 'Vector4D.OnChanged' is never used

Dev/Editor/EffekseerCore/Data/Value/IntWithInifinite.cs#L34

The event 'IntWithInifinite.OnChanged' is never used