fix(ci): use fully qualified container image name

.drone.yml

@@ -7,6 +7,9 @@ platform:
   os: linux
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: markdown lint
   commands:
   - markdownlint *.md
@@ -51,8 +54,11 @@ platform:
   arch: amd64
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build
-  image: plugins/docker
+  image: docker.io/plugins/docker:latest
   settings:
     dockerfile: Dockerfile
     auto_tag: false
@@ -65,7 +71,7 @@ steps:
     path: /var/run/docker.sock
 
 - name: notify
-  image: drillster/drone-email
+  image: docker.io/drillster/drone-email:latest
   environment:
     PLUGIN_HOST:
       from_secret: smtp_host
@@ -106,8 +112,11 @@ platform:
   arch: arm
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build
-  image: plugins/docker
+  image: docker.io/plugins/docker:latest
   settings:
     dockerfile: Dockerfile
     auto_tag: false
@@ -117,7 +126,7 @@ steps:
     no_cache: true
 
 - name: notify
-  image: drillster/drone-email
+  image: docker.io/drillster/drone-email:latest
   environment:
     PLUGIN_HOST:
       from_secret: smtp_host
@@ -161,8 +170,11 @@ platform:
   arch: arm64
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build
-  image: plugins/docker
+  image: docker.io/plugins/docker:latest
   settings:
     dockerfile: Dockerfile
     auto_tag: false
@@ -172,7 +184,7 @@ steps:
     no_cache: true
 
 - name: notify
-  image: drillster/drone-email
+  image: docker.io/drillster/drone-email:latest
   environment:
     PLUGIN_HOST:
       from_secret: smtp_host
@@ -216,8 +228,11 @@ platform:
   arch: amd64
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build
-  image: plugins/docker
+  image: docker.io/plugins/docker:latest
   settings:
     dockerfile: Dockerfile
     auto_tag: false
@@ -233,7 +248,7 @@ steps:
     path: /var/run/docker.sock
 
 - name: notify
-  image: drillster/drone-email
+  image: docker.io/drillster/drone-email:latest
   environment:
     PLUGIN_HOST:
       from_secret: smtp_host
@@ -275,8 +290,11 @@ platform:
   arch: arm
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build
-  image: plugins/docker
+  image: docker.io/plugins/docker:latest
   settings:
     dockerfile: Dockerfile
     auto_tag: false
@@ -289,7 +307,7 @@ steps:
     no_cache: true
 
 - name: notify
-  image: drillster/drone-email
+  image: docker.io/drillster/drone-email:latest
   environment:
     PLUGIN_HOST:
       from_secret: smtp_host
@@ -334,8 +352,11 @@ platform:
   arch: arm64
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build
-  image: plugins/docker
+  image: docker.io/plugins/docker:latest
   settings:
     dockerfile: Dockerfile
     auto_tag: false
@@ -348,7 +369,7 @@ steps:
     no_cache: true
 
 - name: notify
-  image: drillster/drone-email
+  image: docker.io/drillster/drone-email:latest
   environment:
     PLUGIN_HOST:
       from_secret: smtp_host
@@ -389,8 +410,11 @@ type: kubernetes
 name: latest-manifest
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build-manifest
-  image: plugins/manifest
+  image: docker.io/plugins/manifest:latest
   settings:
     auto_tag: false
     ignore_missing: true
@@ -444,8 +468,11 @@ platform:
   arch: amd64
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build
-  image: plugins/docker
+  image: docker.io/plugins/docker:latest
   settings:
     dockerfile: Dockerfile
     auto_tag: true
@@ -463,7 +490,7 @@ steps:
     path: /var/run/docker.sock
 
 - name: notify
-  image: drillster/drone-email
+  image: docker.io/drillster/drone-email:latest
   environment:
     PLUGIN_HOST:
       from_secret: smtp_host
@@ -499,8 +526,11 @@ platform:
   arch: arm
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build
-  image: plugins/docker
+  image: docker.io/plugins/docker:latest
   settings:
     dockerfile: Dockerfile
     auto_tag: true
@@ -518,7 +548,7 @@ steps:
     path: /var/run/docker.sock
 
 - name: notify
-  image: drillster/drone-email
+  image: docker.io/drillster/drone-email:latest
   environment:
     PLUGIN_HOST:
       from_secret: smtp_host
@@ -554,8 +584,11 @@ platform:
   arch: arm64
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build
-  image: plugins/docker
+  image: docker.io/plugins/docker:latest
   settings:
     dockerfile: Dockerfile
     auto_tag: true
@@ -573,7 +606,7 @@ steps:
     path: /var/run/docker.sock
 
 - name: notify
-  image: drillster/drone-email
+  image: docker.io/drillster/drone-email:latest
   environment:
     PLUGIN_HOST:
       from_secret: smtp_host
@@ -605,8 +638,11 @@ type: kubernetes
 name: tagged-manifest
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: build-manifest
-  image: plugins/manifest
+  image: docker.io/plugins/manifest:latest
   settings:
     auto_tag: true
     ignore_missing: true
@@ -657,6 +693,9 @@ platform:
   arch: amd64
 
 steps:
+- name: clone
+  image: docker.io/drone/git:latest
+
 - name: github
   image: docker.io/appleboy/drone-git-push:latest
   resources: