refactor: change patch state parameters to be slices

[itegulov]

In the end, I had to copy the slices into vectors anyway, not sure if there is a way to avoid that

[ChaoticTempest]

Yeah that's the unfortunate part about these APIs. It's to keep them as convenient as possible for users to make use of, which means not having the most performant code underneath, which is fine in the context of workspaces

[adsick]

Into<Vec<u8>> may work, I already try that:
path_state.rs:

    worker
        .patch_state(&contract_id, "STATE", status_msg.try_to_vec()?)
        .await?;

worker/impls.rs

    pub async fn patch_state(
        &self,
        contract_id: &AccountId,
        key: impl Into<Vec<u8>>,
        value: impl Into<Vec<u8>>,
    ) -> anyhow::Result<()> {
        self.workspace.patch_state(contract_id, key, value).await
    }

network/sandbox.rs

    pub(crate) async fn patch_state(
        &self,
        contract_id: &AccountId,
        key: impl Into<Vec<u8>>,
        value: impl Into<Vec<u8>>,
    ) -> anyhow::Result<()> {
        let state = StateRecord::Data {
            account_id: contract_id.to_owned(),
            data_key: key.into(),
            value: value.into(),
        };
...