Add method to create snapshot

[Ja7ad]

Pull Request

Related issue

Fixes #501

What does this PR do?

• Add a new method for creating snapshots

PR checklist

Please check if your PR fulfills the following requirements:

• Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
• Have you read the contributing guidelines?
• Have you made sure that the title is accurate and descriptive of the changes?

Thank you so much for contributing to Meilisearch!

[codecov]

Codecov Report

Attention: Patch coverage is 86.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 86.79%. Comparing base (ad4b0b2) to head (fe05f78).
Report is 2 commits behind head on main.

Files	Patch %	Lines
meilisearch.go	86.66%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #560      +/-   ##
==========================================
- Coverage   86.79%   86.79%   -0.01%     
==========================================
  Files          11       11              
  Lines        1856     1871      +15     
==========================================
+ Hits         1611     1624      +13     
- Misses        152      153       +1     
- Partials       93       94       +1     

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[curquiza]

thank youuuuu

bors merge

[meili-bors]

Build succeeded:

• integration-tests (go current version)
• integration-tests (go latest version)
• linter