Fix ExpandedValue sanitization on struct collection #36660

Job	Run time
setup-environment	17s
lint	2m 59s
checks	1m 10s
unittest-matrix (ubuntu-latest, oldstable)	3m 41s
test-coverage	2m 24s
unittest-matrix (ubuntu-latest, stable)	3m 39s
govulncheck	42s
cross-build-collector (aix, ppc64)	52s
cross-build-collector (linux, amd64)	51s
cross-build-collector (linux, 386)	51s
cross-build-collector (darwin, arm64)	51s
cross-build-collector (linux, arm64)	53s
cross-build-collector (linux, ppc64le)	50s
cross-build-collector (darwin, amd64)	53s
cross-build-collector (windows, amd64)	56s
cross-build-collector (linux, arm, 7)	54s
cross-build-collector (windows, arm64)	56s
cross-build-collector (windows, 386)	56s
cross-build-collector (linux, s390x)	54s
cross-build-collector (linux, riscv64)	58s
unittest	2s
	26m 29s

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