bump FFI to v0.12.67 (#730) #1583

Job	Run time
Make RTC sdist	12s
Build RTC wheels (x86_64)	51s
Build RTC wheels (AMD64)	1m 19s
Build RTC wheels (aarch64)	1m 14s
Build RTC wheels (x86_64 arm64)	1m 9s
Generating protobuf	-1s
Test (macos-latest, Python 3.14) / Test (macos-latest, Python 3.14)	2m 55s
Test (ubuntu-latest, Python 3.10) / Test (ubuntu-latest, Python 3.10)	1m 27s
Test (ubuntu-latest, Python 3.12) / Test (ubuntu-latest, Python 3.12)	1m 28s
Test (ubuntu-latest, Python 3.11) / Test (ubuntu-latest, Python 3.11)	1m 25s
Test (macos-latest, Python 3.12) / Test (macos-latest, Python 3.12)	1m 48s
Test (windows-latest, Python 3.9) / Test (windows-latest, Python 3.9)	2m 38s
Test (ubuntu-latest, Python 3.14) / Test (ubuntu-latest, Python 3.14)	1m 28s
Test (ubuntu-latest, Python 3.13) / Test (ubuntu-latest, Python 3.13)	1m 47s
Test (windows-latest, Python 3.14) / Test (windows-latest, Python 3.14)	1m 54s
Test (macos-latest, Python 3.9) / Test (macos-latest, Python 3.9)	2m 23s
Test (windows-latest, Python 3.12) / Test (windows-latest, Python 3.12)	2m 0s
Test (ubuntu-latest, Python 3.9) / Test (ubuntu-latest, Python 3.9)	1m 39s
Publish RTC release	0s
docs	0s
	27m 36s

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