chore: replace jest with vitest in the dependencies section

[Amorim33]

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PR Type

What kind of change does this PR introduce?

• Documentation fix
• Documentation update
• New Feature
• Translation:: New language
• Bugfix
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

What is the current behavior?

Please describe the current behavior that you are modifying, or link to a relevant issue.
Pull Request Number: expressots/expressots#88

-> Response:
Jest is listed in the core dependencies doc.

What is the new behavior?

Describe the new behavior or link to a relevant issue.

-> Response:
Jest is replaced by Vitest in the core dependencies doc.

Does this PR introduce a breaking change?

• Yes
• No

If this PR contains a breaking change, please describe the impact and migration path for existing applications below.

-> Response:

Other information

Any other information that is important to this PR.

• N/A

-> Response:

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