Improve CI workflow

Author: andyone

.github/workflows/ci.yml

@@ -8,14 +8,14 @@ on:
   schedule:
     - cron: '0 13 */15 * *'
 
+env:
+  SRC_DIR: src/github.com/${{ github.repository }}
+
 jobs:
   Go:
     name: Go
     runs-on: ubuntu-latest
 
-    env:
-      SRC_DIR: src/github.com/${{ github.repository }}
-
     strategy:
       matrix:
         go: [ '1.17.x', '1.18.x' ]
@@ -45,9 +45,6 @@ jobs:
 
     needs: Go
 
-    env:
-      SRC_DIR: src/github.com/${{ github.repository }}
-
     steps:
       - name: Set up Go
         uses: actions/setup-go@v3