Fixed missing image on versionising prod docker image

.woodpecker/.api_uploadimage.yaml

@@ -11,6 +11,7 @@ steps:
       - echo ${CI_COMMIT_TAG} | sed -e "s/^APIDEV-//" >> tags.txt
       - echo "latest-dev"
   - name: (YABA.API) Determining Docker image version number (prod)
+    image: alpine:latest
     when:
       - ref: refs/tags/API-*
     commands:

.woodpecker/.web_uploadimage.yaml

@@ -14,6 +14,7 @@ steps:
   - name: (YABA.Web) Determining Docker image version number (prod)
     when:
       - refs: refs/tags/WEB-*
+    image: alpine:latest
     commands:
       - rm tags.txt
       - echo ${CI_COMMIT_TAG} | sed -e "s/^WEB-//" >> tags.txt