section and priority fields are optional in the Debian spec, so valid packages can cause this test to fail.

Debian docs: https://www.debian.org/doc/debian-policy/ch-controlfields.html#binary-package-control-files-debian-control

This is a failure caused by a legitimate package that installs just fine, but has no section:

   96: [----------] 1 test from DebPackages
   96: [ RUN      ] DebPackages.test_sanity
   96: /opt/build/osquery/tests/integration/tables/helper.cpp:167: Failure
   96: Value of: validate_value_using_flags(value, flags)
   96:   Actual: false
   96: Expected: true
   96: Standard validator of the column "section" with value "" failed
   96: Row: {arch: "amd64", maintainer: "Maintainer", name: "package name", priority: "optional", revision: "", section: "", size: "61921", source: "", status: "install ok installed", version: "0.11.0"}
   96: select *, pid_with_namespace, mount_namespace_id from deb_packages
   96: /opt/build/osquery/tests/integration/tables/helper.cpp:167: Failure
   96: Value of: validate_value_using_flags(value, flags)
   96:   Actual: false
   96: Expected: true
   96: Standard validator of the column "section" with value "" failed
   96: Row: {arch: "amd64", maintainer: "Maintainer", mount_namespace_id: "", name: "package name", pid_with_namespace: "0", priority: "optional", revision: "", section: "", size: "61921", source: "", status: "install ok installed", version: "0.11.0"}
   96: [  FAILED  ] DebPackages.test_sanity (44 ms)
   96: [----------] 1 test from DebPackages (44 ms total)