chore: upgrade avpro to 3.3.6

[davidejensen]

Pull Request Description

What does this PR change?

Fix #7690
This PR upgrades AVPro to 3.3.6 to include a few fixes they introduced in recent versions:

• #2293 Fixed leak of Unity texture handles
• Fixed random crash caused by race condition when closing media (that I think we sometimes see in the crashes on unity diagnostics)
• #2433 Fixed crash on loading a video when using the MediaPlayer API

Test Instructions

This PR updates the version of avpro so we need to test all different types of streaming and video playing, to make sure they work as they do now in prod

Additional Testing Notes

• Note any edge cases to verify
• Mention specific areas that need careful testing
• List known limitations or potential issues

Quality Checklist

• Changes have been tested locally
• Documentation has been updated (if required)
• Performance impact has been considered
• For SDK features: Test scene is included

Code Review Reference

Please review our Code Review Standards before submitting.

[github-actions]

Windows and Mac build successful in Unity Cloud! You can find a link to the downloadable artifact below.

Name	Link
Commit	1aea9a9
Logs	https://github.com/decentraland/unity-explorer/actions/runs/23606803447
Download Windows	https://github.com/decentraland/unity-explorer/suites/62185693395/artifacts/6129085325
Download Windows S3	https://explorer-artifacts.decentraland.org/@dcl/unity-explorer/branch/chore/upgrade-avpro/pr-20298-1aea9a9/Decentraland_windows64.zip
Download Mac	https://github.com/decentraland/unity-explorer/suites/62185693395/artifacts/6128938267
Download Mac S3	https://explorer-artifacts.decentraland.org/@dcl/unity-explorer/branch/chore/upgrade-avpro/pr-20298-1aea9a9/Decentraland_macos.zip
Built on	2026-03-26T17:34:21Z

[DafGreco]

✔️ PR reviewed and approved by QA on both platforms following instructions playing both happy and un-happy path

Regressions for this ticket had been performed in order to verify that the normal flow is working as expected:

• [✔️ ] Backpack and wearables in world
• [✔️ ] Emotes in world and in backpack
• [✔️ ] Teleport with map/coordinates/Jump In
• [ ✔️] Chat and multiplayer
• [ ✔️] Profile card

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Evidence:

evidenceobs.mp4

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All sources were verified :

• Streaming with OBS ✔️
• Streaming with DCL CAST ✔️
• VIMEO VIDEO ✔️

All places were verified 👍

• Worlds ✔️
• Theater section ✔️
• Places ✔️

No new issues were detected during the check of this PR ✔️ all good to go 🚀