Add GitLab to ADOPTERS.md
Add GitLab to ADOPTERS.md

GitLab is now using Falco to provide Container Host Security protection

Co-Authored-By: Kris Nova <5386c1e7bd9c410d07ffcc88fc2ceb29deafe180@nivenly.com>
Signed-off-by: Kris Nova <5386c1e7bd9c410d07ffcc88fc2ceb29deafe180@nivenly.com>

draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco