Force pull container image

.drone.yml

@@ -13,13 +13,16 @@ volumes:
 steps:
 - name: Debugging information
   image: bv11-cr01.bessems.eu/library/packer-extended
+  pull: always
   commands:
   - yamllint --version
   - packer --version
-  - pwsh --version
+  - qemu-img --version
   - ovftool --version
+  - pwsh --version
 - name: Windows Server 2019
   image: bv11-cr01.bessems.eu/library/packer-extended
+  pull: always
   commands:
   - sed -i -e "s/<<img-productkey>>/$${PRODUCTKEY}/" packer/preseed/Server2019/Autounattend.xml
   - |
@@ -69,6 +72,7 @@ steps:
     path: /scratch
 - name: Remove temporary resources
   image: bv11-cr01.bessems.eu/library/packer-extended
+  pull: always
   commands:
   - |
     pwsh -file scripts/Remove-Resources.ps1 \
@@ -86,12 +90,12 @@ steps:
     status:
     - success
     - failure
-- name: Trigger downstream builds  
+- name: Trigger downstream builds
   image: plugins/downstream
   settings:
     server: https://ci.spamasaurus.com
     token:
-      from_secret: drone_token    
+      from_secret: drone_token
     fork: true
     repositories:
       - djpbessems/Packer.Images@ADCS