feat: add UnifiedAddressMapper trait impl bechmarks

[ashutoshvarma]

Closes #1062

Pull Request Summary
This PR adds new benchmarks for UnifiedAddressMapper trait implementation by pallet_unified_accounts.
Also replaces the use of hardcoded weights for trait use throughout runtime (XVM and UA CE).

TODO

• re-run bechmarks

[Dinonard]

LGTM!

[ashutoshvarma]

/bench shibuya-dev pallet_unified_accounts

[github-actions]

Benchmarks job is scheduled at https://github.com/AstarNetwork/Astar/actions/runs/6664906966.
Please wait for a while.
Branch: feat/au-more-bench
SHA: 608cc5a

[github-actions]

Benchmarks have been finished.
You can download artifacts if exists https://github.com/AstarNetwork/Astar/actions/runs/6664906966.

[ashutoshvarma]

/bench shibuya-dev pallet_unified_accounts

[github-actions]

Benchmarks job is scheduled at https://github.com/AstarNetwork/Astar/actions/runs/6665964962.
Please wait for a while.
Branch: feat/au-more-bench
SHA: e702a4d

[github-actions]

Benchmarks have been finished.
You can download artifacts if exists https://github.com/AstarNetwork/Astar/actions/runs/6665964962.

[github-actions]

Package	Line Rate	Branch Rate	Health
precompiles/utils/src	55%	0%	➖
chain-extensions/types/xvm/src	0%	0%	❌
precompiles/assets-erc20/src	76%	0%	➖
pallets/ethereum-checked/src	48%	0%	❌
precompiles/sr25519/src	79%	0%	➖
pallets/contracts-migration/src	0%	0%	❌
chain-extensions/xvm/src	0%	0%	❌
chain-extensions/types/assets/src	0%	0%	❌
precompiles/xcm/src	75%	0%	➖
precompiles/substrate-ecdsa/src	78%	0%	➖
precompiles/utils/macro/src	0%	0%	❌
precompiles/xvm/src	75%	0%	➖
pallets/dynamic-evm-base-fee/src	81%	0%	✔
pallets/xc-asset-config/src	53%	0%	➖
chain-extensions/unified-accounts/src	0%	0%	❌
chain-extensions/dapps-staking/src	0%	0%	❌
pallets/dapps-staking/src	81%	0%	✔
pallets/unified-accounts/src	79%	0%	➖
chain-extensions/types/unified-accounts/src	0%	0%	❌
chain-extensions/types/dapps-staking/src	0%	0%	❌
primitives/src/xcm	66%	0%	➖
precompiles/utils/src/testing	38%	0%	❌
chain-extensions/pallet-assets/src	0%	0%	❌
pallets/xvm/src	40%	0%	❌
precompiles/dapps-staking/src	93%	0%	✔
pallets/block-reward/src	85%	0%	✔
pallets/collator-selection/src	69%	0%	➖
pallets/dapps-staking/src/pallet	85%	0%	✔
primitives/src	63%	0%	➖
Summary	56% (2201 / 3925)	0% (0 / 0)	➖

Minimum allowed line rate is 50%