Prometheus: Change version from Info to Gauge

2 jobs for master in 2 minutes and 36 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #253053610
run_tests_postgres

00:02:36

failed #253053609
run_tests_sqlite3

00:02:36

 
Name Stage Failure
failed
run_tests_sqlite3 Test
Ran 9 tests in 2.459s

OK
$ coverage html
$ coverage report | tail -n 1 | grep -o '\([0-9]\+\(\.[0-9]\+\)\?%\)$'
49%
$ flake8 --ignore=W504 tests.py taguette
taguette/main.py:23:80: E501 line too long (85 > 79 characters)
ERROR: Job failed: exit code 1