Fix bug for FrameCryptor and E2E test for E2EE. #1386

Job	Run time
Make RTC sdist	14s
Build RTC wheels (AMD64)	1m 32s
Generating protobuf	23s
Build RTC wheels (x86_64 arm64)	59s
Build RTC wheels (x86_64)	57s
Build RTC wheels (aarch64)	1m 12s
Test (macos-latest, Python 3.14) / Test (macos-latest, Python 3.14)	1m 20s
Test (ubuntu-latest, Python 3.9) / Test (ubuntu-latest, Python 3.9)	1m 23s
Test (macos-latest, Python 3.9) / Test (macos-latest, Python 3.9)	1m 54s
Test (windows-latest, Python 3.9) / Test (windows-latest, Python 3.9)	2m 13s
Test (macos-latest, Python 3.12) / Test (macos-latest, Python 3.12)	1m 22s
Test (ubuntu-latest, Python 3.11) / Test (ubuntu-latest, Python 3.11)	1m 6s
Test (ubuntu-latest, Python 3.10) / Test (ubuntu-latest, Python 3.10)	1m 16s
Test (ubuntu-latest, Python 3.14) / Test (ubuntu-latest, Python 3.14)	1m 18s
Test (windows-latest, Python 3.14) / Test (windows-latest, Python 3.14)	2m 1s
Test (windows-latest, Python 3.12) / Test (windows-latest, Python 3.12)	2m 12s
Test (ubuntu-latest, Python 3.13) / Test (ubuntu-latest, Python 3.13)	1m 17s
Test (ubuntu-latest, Python 3.12) / Test (ubuntu-latest, Python 3.12)	1m 6s
Publish RTC release	-1s
docs	-1s
	23m 43s

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