Set git type to git sources

[nlewo]

This source should have the type git:

{
  "outputHash": "04sr35fqz66i24lv7r2p9qfqxs55i8xpj7aam0v9yakcr33lf55a",
  "outputHashAlgo": "sha256",
  "outputHashMode": "recursive",
  "type": "url",
  "urls": [
    "https://github.com/albertlauncher/albert.git"
  ],
  "integrity": "sha256-qhRHx8hsKp82qEodeTuKpeiOHU5X5LMpEdGYj10ZWRM=",
  "inferredFetcher": "unclassified"
}

[ardumont]

thumbs up I noticed that too in the current new lister implementation ;)

And currently there is a workaround in the new swh lister [1]. But it's not perfect, as
some are not detected but some won't be detected with this nonetheless (that'd need a
more involved check).

So the best fix would be inside this manifest generation indeed.

Thanks in advance for a fix.

Cheers,

[1] https://forge.softwareheritage.org/source/swh-lister/browse/master/swh/lister/nixguix/lister.py$359-364