Use active status in metrics generator template

generator_templates/usage_metric_definition/metric_definition.yml

@@ -6,7 +6,7 @@ product_stage:
 product_group:
 product_category:
 value_type: <%= value_type %>
-status: implemented
+status: active
 milestone: "<%= milestone %>"
 introduced_by_url:
 time_frame: <%= time_frame %>

spec/fixtures/lib/generators/gitlab/usage_metric_definition_generator/sample_metric.yml

@@ -7,7 +7,7 @@ product_stage:
 product_group:
 product_category:
 value_type: number
-status: implemented
+status: active
 milestone: "13.9"
 introduced_by_url:
 time_frame: 7d

spec/fixtures/lib/generators/gitlab/usage_metric_definition_generator/sample_metric_with_ee.yml

@@ -7,7 +7,7 @@ product_stage:
 product_group:
 product_category:
 value_type: number
-status: implemented
+status: active
 milestone: "13.9"
 introduced_by_url:
 time_frame: 7d

spec/fixtures/lib/generators/gitlab/usage_metric_definition_generator/sample_metric_with_name_suggestions.yml

@@ -8,7 +8,7 @@ product_stage:
 product_group:
 product_category:
 value_type: number
-status: implemented
+status: active
 milestone: "13.9"
 introduced_by_url:
 time_frame: 7d