Improve client and deprecate useless features

[pedrobranco]

This pull request includes several updates and improvements to the codebase, focusing on updating dependencies, removing deprecated features, and adding support for new Bitcoin Core methods. The most important changes include updating the Node.js versions in the CI configuration, modifying the README.md to reflect new usage instructions, and updating the Docker and package configurations to support the latest Bitcoin Core versions.

Updates and Improvements:

• CI Configuration:

  • Updated Node.js versions in the GitHub Actions workflow to include the latest versions (20, 22). (.github/workflows/tests.yaml)

• Documentation:

  • Simplified the README.md by removing outdated SSL/TLS connection examples and updating the usage instructions to reflect the new default values and removed options. (README.md) [1] [2] [3] [4]

• Docker Configuration:

  • Updated Docker images to use the latest Bitcoin Core version (28.0) and adjusted related configurations for better compatibility and security. (docker-compose.yml) [1] [2]

• Package Configuration:

  • Removed deprecated services from the Docker Compose configuration and updated the dependencies script in package.json to reflect these changes. (package.json)

• Codebase Simplification:

  • Removed network-specific configurations and SSL options from the Client class, simplifying the connection setup process. (src/index.js) [1] [2] [3] [4]
  • Added support for new Bitcoin Core methods, including createWalletDescriptor, descriptorProcessPsbt, enumerateSigners, getAddrManInfo, getBlockFromPeer, getChainStates, getHdKeys, getPrioritisedTransactions, getTxSpendingPrevOut, importMempool, loadTxOutSet, migrateWallet, newKeyPool, psbtBumpFee, scanBlocks, scanTxOutSet, send, and sendAll. (src/methods.js) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14]