test: mark SEA tests flaky on linux arm debug #7641

Job	Run time
Build slim tarball	1m 19s
aarch64-linux: Cache V8 build	28s
aarch64-darwin: with shared libraries	24m 22s
x86_64-darwin: with shared libraries	34m 25s
x86_64-linux: with shared libraries	26m 53s
aarch64-linux: with shared boringssl-0.20260508.0	26m 4s
aarch64-linux: with shared openssl-3.0.20	27m 34s
aarch64-linux: with shared openssl-1.1.1w	24m 51s
aarch64-linux: with shared openssl-3.6.2	26m 23s
aarch64-linux: with shared openssl-3.5.6	26m 24s
aarch64-linux: with shared openssl-4.0.0	26m 24s
	4h 5m 7s

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