Merge branch 'fix-payment-metric-names' into 'develop'

Update payment metric names

See merge request !179

nixos/modules/monitoring/server/grafana-config/payments.json

@@ -83,7 +83,7 @@
       "targets": [
         {
           "exemplar": true,
-          "expr": "processors_stripe_charge_attempts",
+          "expr": "payment_processors_stripe_charge_attempts",
           "hide": false,
           "interval": "",
           "legendFormat": "Attempts",
@@ -91,7 +91,7 @@
         },
         {
           "exemplar": true,
-          "expr": "processors_stripe_charge_successes",
+          "expr": "payment_processors_stripe_charge_successes",
           "interval": "",
           "legendFormat": "Successes",
           "refId": "C"
@@ -201,14 +201,14 @@
       "targets": [
         {
           "exemplar": true,
-          "expr": "redemption_signatures_issued",
+          "expr": "payment_redemption_signatures_issued",
           "interval": "",
           "legendFormat": "Issued signatures",
           "refId": "A"
         },
         {
           "exemplar": true,
-          "expr": "redemption_voucher_redeemed",
+          "expr": "payment_redemption_voucher_redeemed",
           "format": "time_series",
           "hide": false,
           "interval": "",