mv environments embedded in commands to separated section

.drone.yml

@@ -4,6 +4,7 @@ name: default
 
 steps:
   - name: greeting
+    group: echo
     image: alpine
     commands:
       - echo hello
@@ -11,11 +12,13 @@ steps:
       - echo done
         
   - name: en
+    group: echo
     image: alpine
     commands:
       - echo hello world
 
   - name: fr
+    group: echo
     image: alpine
     commands:
       - echo bonjour monde
@@ -23,10 +26,12 @@ steps:
   - name: build
     image: golang:1.17-alpine
     pull: if-not-exists
+    environment:
+      CGO_ENABLED: 0
+      GOOS: linux
+      GOARCH: amd64
     commands:
-      - export CGO_ENABLED=0
-      - export GOOS="linux" 
-      - export GOARCH="amd64" 
+      - echo env
       - go build -ldflags="-s -w" -tags timetzdata -o app main.go
 
   - name: publish