util: fix scientific notation formatting #7782

Job	Run time
Build slim tarball	1m 11s
aarch64-linux: Cache V8 build	29s
aarch64-darwin: with shared libraries	28m 37s
x86_64-linux: with shared libraries	29m 51s
x86_64-darwin: with shared libraries	1h 11m 26s
aarch64-linux: with shared openssl-3.6.2	24m 57s
aarch64-linux: with shared openssl-3.0.20	24m 45s
aarch64-linux: with shared openssl-3.5.6	23m 44s
aarch64-linux: with shared boringssl-0.20260526.0	24m 33s
aarch64-linux: with shared openssl-1.1.1w	4m 6s
aarch64-linux: with shared openssl-4.0.0	23m 35s
Build slim tarball	1m 11s
aarch64-linux: Cache V8 build	29s
x86_64-linux: with shared libraries	29m 51s
x86_64-darwin: with shared libraries	1h 11m 26s
aarch64-darwin: with shared libraries	28m 37s
aarch64-linux: with shared openssl-1.1.1w	21m 8s
aarch64-linux: with shared openssl-3.5.6	23m 44s
aarch64-linux: with shared openssl-3.0.20	24m 45s
aarch64-linux: with shared openssl-4.0.0	23m 35s
aarch64-linux: with shared boringssl-0.20260526.0	24m 33s
aarch64-linux: with shared openssl-3.6.2	24m 57s
	8h 51m 30s

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