chore: release v4.5.6

[joepegler]

PR-Codex overview

This PR updates the Biconomy SDK to version 4.4.6, introducing changes related to session storage, token payment, and smart accounts.

Detailed summary

• Updated SDK version to 4.4.6
• Moved SessionStorageClient to a separate package
• Added nonce options for transactions
• Enhanced session support and token payment
• Improved helper functions for translations and session leaf retrieval

The following files were skipped due to too many changes: tests/paymaster/write.test.ts, tests/playground/write.test.ts, src/modules/sessions/sessionSmartAccountClient.ts, examples/CREATE_AND_USE_A_SESSION.md, src/modules/sessions/batch.ts, src/modules/sessions/abi.ts, src/modules/utils/Helper.ts, tests/modules/write.test.ts, tests/account/write.test.ts

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[VGabriel45]

Just one small thing, PR title says 4.5.5 release but it should be 4.4.6