Make update-tests-script more resilient to failures

In that regard, knock off set -e because there are many sub-projects in the tests/ group which are more data like. Those repos will fail here because they don't have the same branching convention.

Whatever errors are reported, we let them be printed and continue with the rest of the repos in the group. This may also be useful in unattended git pushes, like when doing from a CI environment

Signed-off-by: Ritesh Raj Sarraf ritesh.sarraf@collabora.com