.drone.yml: add format & vuln check

.drone.yml

@@ -2,6 +2,21 @@ kind: pipeline
 name: build
 
 steps:
+- name: gofmt
+  image: golang:1.21
+  commands:
+    - gofmt -l -s .
+  when:
+    event:
+      - push
+- name: vuln-check
+  image: golang:1.21
+  commands:
+    - go install golang.org/x/vuln/cmd/govulncheck@latest
+    - govulncheck ./...
+  when:
+    event:
+      - push
 - name: docker
   image: thegeeklab/drone-docker-buildx
   privileged: true
@@ -23,6 +38,9 @@ steps:
       - main
     event:
       - push
+  depends_on:
+    - gofmt
+    - vuln-check
 - name: docker-build
   image: thegeeklab/drone-docker-buildx
   privileged: true
@@ -46,6 +64,9 @@ steps:
         - main
     event:
       - push
+  depends_on:
+    - gofmt
+    - vuln-check
 - name: bump tag in deployment-repo
   image: aaronriedel/kustomize-ci
   commands:
@@ -61,6 +82,8 @@ steps:
       - main
     event:
       - push
+  depends_on:
+    - docker
 - name: push new tag to deployment-repo
   image: appleboy/drone-git-push
   settings:
@@ -80,6 +103,8 @@ steps:
       - main
     event:
       - push
+  depends_on:
+    - bump tag in deployment-repo
 volumes:
 - name: deployment-repo
   temp: {}