chore(upgrade): v1.4.0 to v1.5.0

[enddynayn]

• Upgrade Polkadot-sdk to v.1.5.0.
• Update weights to reflect the new version.
• Modify extrinsic weight test due to a 25% improvement in weights.

For more details, please refer to:

Release Notes Release Analysis

1813

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark: