Update wallet.encrypt function signature 4.x

[avkos]

Description

Fixes #5188

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist for 4.x:

• I have selected the correct 4.x base branch.
• Within the description, the feature or issue is discussed in detail or an issue is linked.
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas.
• I have added any required tests for the changes I made
• I have made corresponding changes to the documentation
• Any dependent changes have been merged and published in downstream modules.
• I ran yarn successfully
• I ran yarn lint successfully
• I ran yarn build:web successfully
• I ran yarn test:unit successfully
• I ran yarn test:integration successfully
• I ran compile:contracts successfully
• I have tested my code.
• I have updated the corresponding CHANGELOG.md file in the packages I have edited.

[luu-alex]

Looks good 👍

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