feat: DynamicAddressablesNetworkPrefabs upgrade to Netcode for GameObjects v1.8.1 [MTT-8514]

[fernando-cortez]

Description

This PR upgrades DynamicAddressablesNetworkPrefabs Sample to include:

• Universal Rpcs
• OnConnectionEvent API
• NetworkObject.InstantiateAndSpawn API (where possible)

Issue Number(s)

MTT-8514

Contribution checklist

• Tests have been added for the project and/or any internal package
• Release notes have been added to the project changelog file
• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• JIRA ticket ID is in the PR title or at least one commit message
• Include the ticket ID number within the body message of the PR to create a hyperlink

[unity-cla-assistant]

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1 out of 2 committers have signed the CLA.

✅ fernando-cortez
❌ NoelStephensUnity
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