chore(deps): update rust crate solana-sdk to 1.16.8

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
solana-sdk (source)	dev-dependencies	patch	1.16.7 -> 1.16.8

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Release Notes

solana-labs/solana (solana-sdk)

### [`v1.16.8`](https://togithub.com/solana-labs/solana/releases/tag/v1.16.8): Testnet - v1.16.8 [Compare Source](https://togithub.com/solana-labs/solana/compare/v1.16.7...v1.16.8) This is a Testnet release. It is not recommended for Mainnet Beta v1.16 removes `solana-sys-tuner`. For manual tuning please see these [System Tuning instructions](https://docs.solana.com/running-validator/validator-start#system-tuning) - In previous v1.16 releases, the `TransactionStatus` and `AddressSignatures` columns were not properly cleaned. This could have resulted in excessive storage use for nodes running with `--enable-rpc-transaction-history`. This has been fixed with [https://github.com/solana-labs/solana/pull/32548](https://togithub.com/solana-labs/solana/pull/32548) ##### Changes - v1.16: cli: skip delegate-stake current voter check for unstaked voters (backport of [#​32787](https://togithub.com/solana-labs/solana/issues/32787)) ([#​32814](https://togithub.com/solana-labs/solana/issues/32814)) - v1.16: program-test: Prohibit setting the compute unit limit past `i64::MAX` (backport of [#​32807](https://togithub.com/solana-labs/solana/issues/32807)) ([#​32811](https://togithub.com/solana-labs/solana/issues/32811)) - v1.16: ledger-tool: Relax ledger requirements for program subcommand (backport of [#​32770](https://togithub.com/solana-labs/solana/issues/32770)) ([#​32774](https://togithub.com/solana-labs/solana/issues/32774)) - v1.16: rpc: get_feature_activation_slot should not error for inactive features (backport of [#​32778](https://togithub.com/solana-labs/solana/issues/32778)) ([#​32784](https://togithub.com/solana-labs/solana/issues/32784)) - v1.16: stake: pub use config constants for api backwards compatibility (backport of [#​32769](https://togithub.com/solana-labs/solana/issues/32769)) ([#​32782](https://togithub.com/solana-labs/solana/issues/32782)) - v1.16: adds extensions to contact-info (backport of [#​32309](https://togithub.com/solana-labs/solana/issues/32309)) ([#​32781](https://togithub.com/solana-labs/solana/issues/32781)) - v1.16: Add from field for message tracking (backport of [#​32725](https://togithub.com/solana-labs/solana/issues/32725)) ([#​32746](https://togithub.com/solana-labs/solana/issues/32746)) - v1.16: stake: Set the Delegation's warmup / cooldown to the correct default (backport of [#​32768](https://togithub.com/solana-labs/solana/issues/32768)) ([#​32777](https://togithub.com/solana-labs/solana/issues/32777)) - v1.16: stake: deprecate on chain warmup/cooldown rate and config (backport of [#​32723](https://togithub.com/solana-labs/solana/issues/32723)) ([#​32749](https://togithub.com/solana-labs/solana/issues/32749)) - v1.16: report received message signatures only on PUSH requests (backport of [#​32708](https://togithub.com/solana-labs/solana/issues/32708)) ([#​32772](https://togithub.com/solana-labs/solana/issues/32772)) - v1.16: improve prioritization fee cache accuracy (backport of [#​32692](https://togithub.com/solana-labs/solana/issues/32692)) ([#​32756](https://togithub.com/solana-labs/solana/issues/32756))

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