Fix bug for FrameCryptor and E2E test for E2EE. #1394

Job	Run time
Generating protobuf	29s
Build RTC wheels (aarch64)	1m 11s
Make RTC sdist	16s
Build RTC wheels (x86_64 arm64)	57s
Build RTC wheels (x86_64)	53s
Build RTC wheels (AMD64)	1m 22s
Test (ubuntu-latest, Python 3.10) / Test (ubuntu-latest, Python 3.10)	1m 8s
Test (ubuntu-latest, Python 3.11) / Test (ubuntu-latest, Python 3.11)	1m 17s
Test (ubuntu-latest, Python 3.9) / Test (ubuntu-latest, Python 3.9)	1m 26s
Test (macos-latest, Python 3.14) / Test (macos-latest, Python 3.14)	1m 31s
Test (macos-latest, Python 3.9) / Test (macos-latest, Python 3.9)	1m 38s
Test (windows-latest, Python 3.9) / Test (windows-latest, Python 3.9)	2m 13s
Test (ubuntu-latest, Python 3.14) / Test (ubuntu-latest, Python 3.14)	1m 11s
Test (windows-latest, Python 3.12) / Test (windows-latest, Python 3.12)	1m 32s
Test (ubuntu-latest, Python 3.13) / Test (ubuntu-latest, Python 3.13)	1m 8s
Test (macos-latest, Python 3.12) / Test (macos-latest, Python 3.12)	1m 26s
Test (windows-latest, Python 3.14) / Test (windows-latest, Python 3.14)	1m 36s
Test (ubuntu-latest, Python 3.12) / Test (ubuntu-latest, Python 3.12)	1m 9s
Publish RTC release	0s
docs	0s
	22m 23s

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