fix: decode ASTC on the CPU when the GPU lacks support - #16

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

'FGameDataHandleProperty.Flags' hides inherited member 'FField.Flags'. Use the new keyword if hiding was intended.

Nullability of type of parameter 'value' doesn't match overridden member (possibly because of nullability attributes).

'UPMTimelineEvent.Properties' hides inherited member 'AbstractPropertyHolder.Properties'. Use the new keyword if hiding was intended.

'UAnimNotifyState_TimedNiagaraEffect.Template' hides inherited member 'UObject.Template'. Use the new keyword if hiding was intended.

Nullability of type of parameter 'value' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'existingValue' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'value' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'existingValue' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'value' doesn't match overridden member (possibly because of nullability attributes).