Ubuntu recipe should run the lintian test (using Ubuntu lintian)

The Salsa CI pipeline Ubuntu recipe currently does not run the lintian test. It would be useful to do so, as there are some Ubuntu specific checks in the Ubuntu lintian package, see for example:

lintian (2.118.0ubuntu1) oracular; urgency=low

  * Merge from Debian unstable. Remaining changes:
    - Fix building udebs, now that in Ubuntu noudebs is implied profile
      (LP: #1918120).
    - Add zst as allowed compression for .deb & .udeb although we don't
      actually ship udeb packages that support zst (LP: #1923845).
    - Add AC_INIT in
      macro-not-cross-compilation-safe/build-spec/orig/src/configure.ac
      (LP: #1950989).
    - Add -fPIC ld flags to
      checks/binaries/prerequisites/numpy/binaries-missing-depends-on-numpy-abi
    - macro-not-cross-compilation-safe is expecting line one, we added AC_INIT
      so it should now match line three.
    - Ubuntu enables LTO by default, so without-fat-lto-objects is expected to
      fail.

 -- Gianfranco Costamagna <locutusofborg@debian.org>  Wed, 31 Jul 2024 08:58:10 +0200

Thanks!