Fix ExpandedValue sanitization on struct collection #36668

Job	Run time
setup-environment	17s
checks	2m 21s
lint	14m 24s
unittest-matrix (ubuntu-latest, oldstable)	6m 44s
unittest-matrix (ubuntu-latest, stable)	7m 10s
test-coverage	10m 42s
cross-build-collector (windows, 386)	54s
cross-build-collector (linux, amd64)	55s
cross-build-collector (linux, ppc64le)	57s
cross-build-collector (darwin, amd64)	1m 2s
cross-build-collector (linux, arm, 7)	56s
cross-build-collector (linux, s390x)	56s
cross-build-collector (aix, ppc64)	56s
cross-build-collector (windows, amd64)	54s
cross-build-collector (darwin, arm64)	59s
cross-build-collector (windows, arm64)	1m 2s
cross-build-collector (linux, arm64)	1m 0s
cross-build-collector (linux, riscv64)	1m 1s
cross-build-collector (linux, 386)	57s
govulncheck	3m 37s
unittest	2s
	57m 46s

Provide feedback