ci: do not limit builds to master branch
ci: do not limit builds to master branch

The build triggered depends on the workflow files present in each
commit, so we're not making lcm be tested as master and branches can get
tested before a PR is opened.

Signed-off-by: Pau Ruiz Safont <9c4aad32b049b39a74875643d7fe76c19fd4f9a1@citrix.com>

lindig/xs-opam,xapi-project/xs-opam