reporter: fix samples.SetLocationsLength #1038

Job	Run time
Check licenses of dependencies	30s
Check licenses of dependencies	32s
Check licenses of dependencies	1m 9s
Check for differences in the eBPF binary blobs	33s
Check for differences in the eBPF binary blobs	33s
Check for differences in the eBPF binary blobs	33s
Build integration test binaries (amd64)	32s
Build integration test binaries (amd64)	35s
Build integration test binaries (amd64)	1m 27s
Build integration test binaries (arm64)	28s
Build integration test binaries (arm64)	33s
Build integration test binaries (arm64)	1m 26s
Lint (amd64)	28s
Lint (amd64)	33s
Lint (amd64)	2m 3s
Test (amd64)	32s
Test (amd64)	32s
Test (amd64)	1m 58s
Lint (arm64)	30s
Lint (arm64)	32s
Lint (arm64)	2m 16s
Test (arm64)	41s
Test (arm64)	32s
Test (arm64)	3m 19s
Integration tests (v${{ matrix.kernel }} ${{ matrix.target_arch }})	0s
Integration tests (v${{ matrix.kernel }} ${{ matrix.target_arch }})	0s
Integration tests (v4.19.314 amd64)	1m 42s
Integration tests (v5.4.276 amd64)	1m 20s
Integration tests (v5.10.217 amd64)	1m 26s
Integration tests (v5.15.159 amd64)	1m 24s
Integration tests (v6.1.91 amd64)	1m 21s
Integration tests (v6.6.31 amd64)	1m 48s
Integration tests (v6.8.10 amd64)	1m 22s
Integration tests (v6.9.1 amd64)	1m 19s
Integration tests (v6.6.31 arm64)	2m 31s
Integration tests (v6.8.4 arm64)	2m 24s
Integration tests (v6.9.1 arm64)	2m 24s
	41m 48s

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