Merge pull request #421 from InjectiveLabs/chore/release-for-v1.20.3

New Features
- Added Markets retrieval to the derivatives API.
- Added delegation transfer receiver configuration support.
- Added notional values to spot trade data.
- Expanded derivative position data with initial leverage, margin, entry price, and quantity.

Bug Fixes
- Updated exchange/derivatives API compatibility with the latest protocol definitions.

Tests
- Updated expectations for stream and position payloads to include the new fields.

Chores
- Bumped package version to 1.16.1 and tightened Poetry version constraints in CI/package builds.

Merge pull request #419 from InjectiveLabs/release/master-v1.16

[chore] release version for chain v1.20.1

New Features
- Added support for a new derivatives funding-payments endpoint
- Added a new exchange RPC method for preparing fee grants
- Extended rate-limit data to include oracle-related pricing information

Release v1.15.0

Merge pull request #415 from InjectiveLabs/ic-1055/create-python-sdk-…

…final-release-for-v120-testnet

[IC-1055] create-python-sdk-final-release-for-v120-testnet

Merge pull request #413 from InjectiveLabs/fix/update_python_dependen…

…cy_version

fix/update_python_dependency_version

Merge pull request #412 from InjectiveLabs/dev

release/v1_19_changes_to_master_for_v1_14_release

Merge pull request #410 from InjectiveLabs/ic-985/create-python-sdk-f…

…inal-release-for-v1190

[CHORE] regenerate protos for injective-core/indexer and align v1.19.0-beta

Merge pull request #408 from InjectiveLabs/chore/enforce_python_versi…

…on_compatibility

[CHORE] enforce python version compatibility

Merge pull request #407 from InjectiveLabs/release/v1_13_to_master

Release/v1.13 to master

Merge pull request #405 from InjectiveLabs/chore/update_license_year

[CHORE] Update licence year