Add can_manage_agent_session to VideoGrants #1405

Job	Run time
Make RTC sdist	14s
Generating protobuf	22s
Build RTC wheels (x86_64 arm64)	1m 14s
Build RTC wheels (aarch64)	1m 27s
Build RTC wheels (AMD64)	1m 16s
Build RTC wheels (x86_64)	49s
Test (ubuntu-latest, Python 3.9) / Test (ubuntu-latest, Python 3.9)	42s
Test (ubuntu-latest, Python 3.13) / Test (ubuntu-latest, Python 3.13)	29s
Test (windows-latest, Python 3.9) / Test (windows-latest, Python 3.9)	1m 23s
Test (macos-latest, Python 3.9) / Test (macos-latest, Python 3.9)	1m 4s
Test (ubuntu-latest, Python 3.10) / Test (ubuntu-latest, Python 3.10)	31s
Test (ubuntu-latest, Python 3.14) / Test (ubuntu-latest, Python 3.14)	31s
Test (windows-latest, Python 3.12) / Test (windows-latest, Python 3.12)	56s
Test (ubuntu-latest, Python 3.12) / Test (ubuntu-latest, Python 3.12)	38s
Test (ubuntu-latest, Python 3.11) / Test (ubuntu-latest, Python 3.11)	30s
Test (windows-latest, Python 3.14) / Test (windows-latest, Python 3.14)	57s
Test (macos-latest, Python 3.12) / Test (macos-latest, Python 3.12)	50s
Test (macos-latest, Python 3.14) / Test (macos-latest, Python 3.14)	38s
Publish RTC release	-1s
docs	0s
	14m 30s

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