[FEATURE] Handle all unhandled promises in the tests

[C0ZEN]

Describe the bug
There are a bunch of unhandled promises in the tests.

Like:

UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch().
To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 13)

To Reproduce
Steps to reproduce the behavior:

1. Run the tests

Expected behavior
No warning/errors.

[C0ZEN]

I really need help with that.
I can't find what is wrong...

[C0ZEN]

See this Stackoverflow thread opened.

[github-actions]

⚠️ Warning! ⚠️

This issue was marked as stale due to a lack of activity for two months. 😟
In one month this issue will be closed if there is no more activity during this period. 😬

If you want to avoid this stale state you could add one of these labels:

• 
• 
• 
• 

[github-actions]

⚠️ Warning! ⚠️

This issue was marked as stale due to a lack of activity for two months. 😟
In one month this issue will be closed if there is no more activity during this period. 😬

If you want to avoid this stale state you could add one of these labels:

• 
• 
• 
• 
• 

[github-actions]

⚠️ Warning! ⚠️

This issue was marked as stale due to a lack of activity for two months. 😟
In one month this issue will be closed if there is no more activity during this period. 😬

If you want to avoid this stale state you could add one of these labels:

• 
• 
• 
• 
• 

[github-actions]

⚠️ Warning! ⚠️

This issue was marked as stale due to a lack of activity for two months. 😟
In one month this issue will be closed if there is no more activity during this period. 😬

If you want to avoid this stale state you could add one of these labels:

• 
• 
• 
• 
• 

[github-actions]

⚠️ Warning! ⚠️

This issue was marked as stale due to a lack of activity for two months. 😟
In one month this issue will be closed if there is no more activity during this period. 😬

If you want to avoid this stale state you could add one of these labels:

• 
• 
• 
• 
•