feat: enhance Dependabot workflow with improved permissions and auto-…

[Raouf25]

…merge capabilities

Description

Briefly describe the changes introduced in this PR.

Type of Change

• Bug fix (non-breaking change)
• Feature (new functionality)
• Breaking change (incompatible modification)
• Documentation

Context & Ticket

Reference the associated Jira or GitHub ticket: TICKET-XXX

Checklist

• Jira ticket number added to PR title
• Milestone assigned
• SonarQube report reviewed (coverage > 80%)
• Unit/Integration tests added or updated
• Tests executed locally with mvn clean test
• Maven build successful (mvn clean verify)
• Swagger/OpenAPI files updated if needed
• Changelog updated
• Documentation updated if applicable
• No credentials or secrets in the code

Testing

• Unit Tests: Describe the tests added
• Integration Tests: Commands to reproduce the tests
• Manual Tests: Steps to validate the changes

Additional Notes

Add any useful information for the reviewer (technical approach, architectural decisions, etc.).