Bump polkadot-api and polkadot-js deps

[ap211unitech]

📝 Description

This PR aims to upgrade polkadot-api and polkadot-js dependencies.

@polkadot-api/merkleize-metadata ------------ ◯ ^1.1.22 ------ ◉ ^1.1.25 ------
@polkadot/api ------------------------------- ◯ ^16.4.6 ------ ◉ ^16.4.8 ------
@polkadot/phishing -------------------------- ◯ ^0.25.18 ----- ◉ ^0.25.19 -----
@polkadot/rpc-provider ---------------------- ◯ ^16.4.6 ------ ◉ ^16.4.8 ------
@polkadot/types-augment --------------------- ◯ ^16.4.6 ------ ◉ ^16.4.8 ------
@polkadot/types ----------------------------- ◯ ^16.4.6 ------ ◉ ^16.4.8 ------

[polkadot-js-bot]

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