src: fix escaping of single quotes in task runner #8362

Job	Run time
Build slim tarball	1m 30s
aarch64-darwin: with shared libraries	8m 30s
aarch64-linux: Cache V8 build	27s
x86_64-darwin: with shared libraries	12m 1s
x86_64-linux: with shared libraries	11m 6s
aarch64-linux: with shared openssl-3.0.21	5m 38s
aarch64-linux: with shared openssl-1.1.1w	4m 10s
aarch64-linux: with shared openssl-4.0.1	4m 36s
aarch64-linux: with shared openssl-3.6.2	4m 22s
aarch64-linux: with shared openssl-3.5.7	4m 39s
aarch64-linux: with shared boringssl-0.20260526.0	3m 33s
	1h 0m 32s

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