chore(formly): set OnPush as default for formly wrappers

[prasepic]

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[timowolf]

Many thanks for the contribution. Why did you not change the SiFormlyWrapperComponent component?

I also do not really understand why you did this change. We also have many other components in the folders fields and structural. Why not changing all or does this not make sense?

[prasepic]

Many thanks for the contribution. Why did you not change the SiFormlyWrapperComponent component?

I also do not really understand why you did this change. We also have many other components in the folders fields and structural. Why not changing all or does this not make sense?

I did not change the SiFormlyWrapper because it breaks Timo.

I did this change because of #668 and also OnPush must be the default for formly anyways starting from v6 https://formly.dev/docs/guide/migration/#1-custom-type-onpush-change-detection.

Regarding changing others, they all have to be tested first so that nothing breaks.
I wanted to do it one by one.

[timowolf]

Many thanks, this looks good to me.

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