[SNIPPETS-C++] Updated "Vector To Queue"

[majvax]

Description

• The snippets was not following the guidelines.
• It contained error, you can't pass by reference like that in c++
• Updated it so it work with other type.

Type of Change

• ✨ New snippet
• 🛠 Improvement to an existing snippet
• 🐞 Bug fix
• 📖 Documentation update
• 🔧 Other (please describe):

Checklist

• I have tested my code and verified it works as expected.
• My code follows the style and contribution guidelines of this project.
• Comments are added where necessary for clarity.
• Documentation has been updated (if applicable).
• There are no new warnings or errors from my changes.

[Mathys-Gasnier]

Good catch