WIP: Reduce rspec log clutter
Problem
Current rspec output in job logs is difficult to parse visually.
Proposed Solution
Reduce verbosity of logs going to STDOUT and capture test results in HTML for future publishing.
- using .rspec configuration
- simplify STDOUT formatter
- add html formatter and output to file
- save html report as artifact
Closes gitlab-org/gitlab-ce#59052
Edited by George Koltsov