Simplify TD3 Reinforcement Learning Agent Creation

[5advaith]

Description:

This pull request aims to simplify the process of creating td3 reinforcement learning agents by setting default template parameters. The changes introduced in this pull request streamline the agent creation process and improve code readability.

Changes:

Set default template parameters for td3 reinforcement learning agent creation.

Related issue

#3648

Note: This is my first pull request, and I'm eager to learn and improve. Any feedback or suggestions are greatly appreciated!

[mlpack-bot[bot]]

Thanks for opening your first pull request in this repository! Someone will review it when they have a chance. In the mean time, please be sure that you've handled the following things, to make the review process quicker and easier:

• All code should follow the style guide
• Documentation added for any new functionality
• Tests added for any new functionality
• Tests that are added follow the testing guide
• Headers and license information added to the top of any new code files
• HISTORY.md updated if the changes are big or user-facing
• All CI checks should be passing

Thank you again for your contributions! :+1:

[mlpack-bot[bot]]

This issue has been automatically marked as stale because it has not had any recent activity. It will be closed in 7 days if no further activity occurs. Thank you for your contributions! :+1: