fix: correct SaveAccount input in TestJob_ComplicatedTransfer

[Kubudak90]

Description

Fixes #451

The test TestJob_ComplicatedTransfer was incorrectly passing {{key.public_key}} (a *types.PublicKey) where {{key}} (a *keys.KeyPair) was expected by SaveAccountInput.

The Bug

SaveAccountInput expects:

type SaveAccountInput struct {
    AccountIdentifier *types.AccountIdentifier `json:"account_identifier"`
    KeyPair           *keys.KeyPair            `json:"keypair"`
}

But the test was providing only the public key:

Input: `{"account_identifier": {{account.account_identifier}}, "keypair": {{key.public_key}}}`,

This caused silent JSON unmarshalling failures where the KeyPair field was populated with empty values instead of the actual key data, as described in #451.

The Fix

Changed {{key.public_key}} to {{key}} to pass the full KeyPair that GenerateKey stored in the variable.

Verification

This is a one-line test fix that corrects the input data to match the expected type. The test was previously silently failing - now it will properly validate the SaveAccount functionality.

Type of Change

• Bug fix (test correction)

Testing

• The existing test TestJob_ComplicatedTransfer will now properly validate SaveAccount behavior instead of silently failing during JSON unmarshalling.

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 1 Sum 2