codecov: use carryforward feature

Author: zchee

.circleci/config.yml

@@ -19,7 +19,6 @@ jobs:
       - run:
           name: Check versions
           command: |
-            cat /etc/os-release
             go version
             go env
       - run:
@@ -50,7 +49,6 @@ jobs:
       - run:
           name: Check versions
           command: |
-            cat /etc/os-release
             go version
             go env
       - run:

.codecov.yml

@@ -38,9 +38,11 @@ flags:
   json:
     paths:
       - /
+    carryforward: true
   gojay:
     paths:
       - /
+    carryforward: true
 
 comment:
   behavior: default