Fix return type for `PhylumApi::getJobStatusRaw` #4356

Job	Run time
oldstable (ubuntu-20.04)	2m 22s
all-features (ubuntu-20.04)	6m 3s
deno-checks	8s
all-features (macos-14)	6m 5s
clippy (ubuntu-20.04, --all-features)	2m 23s
clippy (macos-14, --all-features)	2m 35s
oldstable (macos-14)	2m 46s
clippy (windows-latest, --no-default-features -F extensions)	7m 16s
oldstable (windows-latest)	7m 34s
rustfmt	13s
shellcheck	4s
test-matrix (ubuntu-20.04)	5m 36s
test-matrix (macos-14)	4m 1s
test-matrix (windows-latest, --no-default-features -F extensions)	13m 34s
test	1s
	1h 0m 41s

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