Improve the version for the debian package

Suffix the snapshot version with .collabora to make it more clear this
is a collabora forked version
Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>

.gitlab-ci.collabora.yml

@@ -6,10 +6,10 @@ include:
 build debian source:
   script:
     - mkdir _build
-    - VERSION=$(git describe | sed 's,-,.,g')
+    - VERSION=$(git describe | sed 's,-,.,g').collabora
     - gbp dch --spawn-editor=never -R --ignore-branch -N ${VERSION}-0.1
     - git commit -am "snapshot"
-    - git tag ${VERSION}
+    - git tag debian/${VERSION}-0.1
     - git archive --prefix "lava-${VERSION}/" -o _build/lava_${VERSION}.orig.tar.gz HEAD
     - ls _build/
     - ci-buildpackage -S