chore: remove Sync trait bound from Syscalls #220

Job	Run time
linux-x86-deny	35s
linux-x86-ci (ubuntu-latest)	59s
linux-x86-ci (ubuntu-24.04-arm)	1m 46s
linux-arm-ci-asm	6m 55s
linux-arm-test-suite	4m 30s
linux-native-ci-asm (ubuntu-latest)	54s
linux-native-ci-asm-chaos (ubuntu-latest)	1m 4s
linux-native-ci-asm (ubuntu-24.04-arm)	1m 32s
linux-native-ci-asm-chaos (ubuntu-24.04-arm)	1m 33s
linux-native-test-spawn (ubuntu-latest)	1m 0s
linux-native-test-suite (ubuntu-latest)	2m 46s
linux-native-test-spawn (ubuntu-24.04-arm)	1m 29s
linux-native-test-suite (ubuntu-24.04-arm)	5m 11s
macos-x86-ci-asm	1m 37s
linux-x86-ci-generated	15s
windows-x86-ci-asm	4m 24s
	36m 30s

Provide feedback