Updated expected kernel version in workstation tests

[zenmonkeykstop]

Status

Ready for review

Description of Changes

Towards #546 .

Updates buster kernel version in tests from 4.14.169 to 4.14.182

• Kernel config changes: updated securedrop-workstation config for 4.14.182 build ansible-role-grsecurity-build#58
• Metapackage changes: Bumped workstation-grsec kernel version to 4.14.182 securedrop-builder#174

Testing

• Install workstation using this branch
• make test tests fail due to version mismatch
• Update kernel to 4.14.182 in securedrop-workstation-buster using packages from added 4.14.182 workstation kernel packages securedrop-apt-test#42
• run make clean and make all to rebuild workstation
• make test tests that check kernel version now pass

Checklist

If you have made code changes

• Linter (make flake8) passes in the development environment (this box may
  be left unchecked, as flake8 also runs in CI)

If you have made changes to the provisioning logic

• All tests (make test) pass in dom0 of a Qubes install

• This PR adds/removes files, and includes required updates to the packaging
  logic in MANIFEST.in and rpm-build/SPECS/securedrop-workstation-dom0-config.spec

[zenmonkeykstop]

Superceded, closing.