"Failed to decrypt Signal password" because libsecret-tools was not installed

[fuenfundachtzig]

Desktop (please complete the following information):

• OS and version: Ubuntu 20.04 LTS
• Terminal/shell used: bash

Describe the bug
Running sigexport fails with "Failed to decrypt Signal password". Adding code to print the exception in data.py yields, "Failed to decrypt Signal password: [Errno 2] No such file or directory: 'secret-tool'".

To reproduce
Not quite sure, I upgraded using git pull and installed the required packages manually using python3.10 -m pip install -r requirements.lock.

Fix
Installed libsecret-tools manually using apt.