Update asset-hub type-support metadata files for v1.4.0

[valentinfernandez1]

This PR updates the AH Kusama and AH Polkadot type-support interfaces to the latest polkadot-fellows/runtimes release v1.4.0.

Since these releases are not yet live in their respective chains the process to query the metadata was as follows:

1. Build AH (polkadot/kusama) chain_spec:

chain-spec-builder create -t development \        
--relay-chain paseo \
--para-id 1000 \
--runtime AH_POLKADOT_OR_KUSAMA_RUNTIME \
named-preset development

2. Start omninode using the generated chain_spec.json

polkadot-omni-node --chain ./chain_spec.json --dev

3. Pull metadata and generate interfaces

node ./scripts/metadata-get.mjs --url http://127.0.0.1:9944

yarn build:interfaces  

yarn test 

Closes #6101

[TarikGul]

🚀

[polkadot-js-bot]

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