Fix NestJS 10 compatibility issues

[Pedr0Rocha]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/nestjs/nest/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[x] Other... Please describe: Compatibility issue with NestJS 10

What is the current behavior?

Issue Number: #488

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[Pedr0Rocha]

Replaced the deprecated stuff from @nestjs/core Module in order to fix the compatibility issue with the latest released version 10.0.3.
This only changes the internal implementation of the library and how it extracts the properties from the Module. This can be improved further in the future by renaming the properties of the lib as well to match NestJS names for consistency.

[flamewow]

Thanks for the PR @Pedr0Rocha