add signature verification to install.sh (#2941)

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

test/install/1_download_snapshot_asset_test.sh

@@ -63,7 +63,7 @@ test_negative_snapshot_download_asset() {
 test_sboms_have_packages() {
   find "$(snapshot_dir)/" -name "*.sbom" -print0 | while IFS= read -r -d '' file; do
       count=$(cat "$file" | jq ".artifacts | length")
-      if [ "$count" -gt 80 ]; then
+      if [ "$count" -lt 80 ]; then
           echo "not enough packages found for file: $file"
           exit 1
       fi