aconfig: enforce all file versions are tested

run the serialization tests (which enforces the round trip of into_bytes
and from_bytes) for versions 1-MAX. ideally we won't have to support all
versions forever, but until then we should make sure new versions are
tested automatically

Test: atest aconfig_storage_file.test
Bug: 387282428
Change-Id: If0da10a64918148bc24257977f3fd337f4023f6c