Update Dependenceis

[mayur-solace]

• Update Spring Boot to v4.x
• Update failsafe and surefire plugin version
• Update Testcontainers dependency version

✨ PR Description

Purpose: Update third-party dependencies including Toxiproxy container image and Jackson library to newer versions for improved security and compatibility.

Main changes:

• Upgraded Toxiproxy Docker image from shopify/toxiproxy:2.1.0 to ghcr.io/shopify/toxiproxy:2.9.0 with new registry location
• Migrated Jackson import from com.fasterxml.to tools.jackson.databind package namespace
• Updated Hamcrest assertion imports to use testcontainers shaded version instead of direct dependency

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✨ PR Review

LGTM

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