Pin Docker images in CI

.drone.yml

@@ -15,14 +15,14 @@ trigger:
 
 steps:
   - name: reuse
-    image: fsfe/reuse
+    image: fsfe/reuse:3.0.2-debian
   - name: lint
-    image: node:20
+    image: node:20.12.2
     commands:
       - npm ci
       - npm run lint
   - name: audit
-    image: node:20
+    image: node:20.12.2
     commands:
       - npm install -g better-npm-audit
       - better-npm-audit audit --production --level=moderate
@@ -43,7 +43,7 @@ depends_on:
 
 steps:
   - name: docker-publish
-    image: plugins/docker
+    image: plugins/docker:20.17.3
     settings:
       registry: git.wtf-eg.de
       repo: git.wtf-eg.de/kompetenzinventar/frontend
@@ -70,7 +70,7 @@ depends_on:
 
 steps:
   - name: deploy-dev
-    image: appleboy/drone-ssh
+    image: appleboy/drone-ssh:1.7.5
     settings:
       host:
         - dev01.wtf-eg.net
@@ -92,14 +92,14 @@ trigger:
 
 steps:
   - name: reuse
-    image: fsfe/reuse
+    image: fsfe/reuse:3.0.2-debian
   - name: lint
-    image: node:20
+    image: node:20.12.2
     commands:
       - npm ci
       - npm run lint
   - name: docker-publish
-    image: plugins/docker
+    image: plugins/docker:20.17.3
     settings:
       registry: git.wtf-eg.de
       repo: git.wtf-eg.de/kompetenzinventar/frontend