Upgrade Docker Compose version

[chirangaalwis]

Description:
Current Docker Compose resources refer to version 2.3. It is suggested to upgrade this to version 2.4 (version 2 of Docker Compose file format [1]) or to version 3 of Docker Compose file format [2].

[1]: Docker Compose version 2 file format
[2]: Docker Compose version 3 file format

Affected Product Version:
WSO2 Enterprise Integrator v6.4.x

Sub Tasks:

• Evaluate the Docker Compose version 3 constructs
• Identify differences between the past version (v2.3) and latest version (v3)
• Integrate the changes to the existing Docker Compose resources
• Test with Alpine based Docker resources
• Test with CentOS based Docker resources
• Test with Ubuntu based Docker resources
• Peer/Code review