Fixing Unit tests in Python 3.5

[dortegau]

Prerequisites

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Description

As Python does not guarantee dict order, unit tests intermittently fails because from Python 3.6 onwards, the standard dict type maintains insertion order by default (that's why never fails using Python >= 3.6).

Steps to Reproduce

1. Execute unit tests multiple times using Python 3.5

Expected behavior: Tests should pass always

Actual behavior: Tests sometimes fails

Reproduces how often: Not determined

Versions

Prom2teams v2.5.4