chore(ci): Disable failure but increase regression threshold (to be refined)

Author: bric3

.gitlab/benchmarks.yml

@@ -77,7 +77,6 @@ check-big-regressions:
       artifacts: true
   when: on_success
   tags: ["arch:amd64"]
-  allow_failure: true # Exercise the job before making it mandatory
   # ARTIFACTS_DIR /go/src/github.com/DataDog/apm-reliability/dd-trace-java/reports/
   # need to convert them
   script:

.gitlab/benchmarks/bp-runner.fail-on-regression.yml

@@ -4,4 +4,4 @@ experiments:
       - name: Regression Check
         run: fail_on_regression
         # Applies on all scenarios
-        regression_threshold: 10.0 # percents
+        regression_threshold: 20.0 # percents