Change sbom_test.sh to take command line arguments for target product, release...

Change sbom_test.sh to take command line arguments for target product, release and build variant, which is for a corresponding change in CI.

Bug: 276778945
Test: build/soong/tests/sbom_test.sh TARGET_PRODUCT=aosp_cf_x86_64_phone TARGET_RELEASE=trunk_staging TARGET_BUILD_VARIANT=userdebug
Change-Id: I2d9e271e4ae351e3626657aa2ac2a1a967c15fc8