feat: round global score to 1 decimal

backend/core/models.py

@@ -1298,7 +1298,7 @@ class Meta:
     def get_global_score(self):
         requirement_assessments_scored = RequirementAssessment.objects.filter(compliance_assessment=self).exclude(score=None)
         score = requirement_assessments_scored.aggregate(models.Avg('score'))
-        return score['score__avg'] or -1
+        return round(score['score__avg'], 1) or -1
 
     def get_requirements_status_count(self):
         requirements_status_count = []