Dynamic product streams are not indexed, when changing product assignment at categories

*PHP Version:* 8.2 | *Shopware Version:* 6.6.7.1 | *Affected area / extension:* Platform(Default)

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*_Actual behaviour:_*

If I open a category in the admin (Catalogues > Categories > click on a category) and then assign a product there in the ‘Products’ tab, the dynamic product groups are not reindexed.
-> Issue.

*_Expected behaviour:_*

If I open a category in the admin (Catalogues > Categories > click on a category) and then assign a product there in the ‘Products’ tab, the dynamic product groups should be reindexed.

*_How to reproduce:_*

# Create a dynamic product group based on "Product is in category X"
# Open the category X and assign there a product A.
# Save the category
# Afterwards look in the table product_stream_mapping. You will not find the product stream id there.