ci: disable cache and enable manual runs

.woodpecker/build.yml

@@ -29,7 +29,7 @@ steps:
         DATE=$(date --iso-8601=seconds)
         echo "DATE=$DATE" >> .variables
     when:
-      - event: [push, pull_request, cron]
+      - event: [push, pull_request, cron, manual]
         evaluate: 'CI_COMMIT_AUTHOR_EMAIL != "renovate@mgrote.net"'
 
   build_and_push: # damit dieser Step laufen kann muss das Repo in der Woodpecker-GUI "privilegiert" sein
@@ -44,6 +44,7 @@ steps:
       - docker buildx inspect --bootstrap
       - |
         docker buildx build \
+        --no-cache \
         --platform=linux/amd64 \
         --push \
         --tag registry.mgrote.net/${CI_REPO_NAME}:${CI_COMMIT_SHA:0:8} \
@@ -56,6 +57,6 @@ steps:
         --label org.opencontainers.image.created=$DATE \
         --file Dockerfile .
     when:
-      - event: [push, pull_request, cron]
+      - event: [push, pull_request, cron, manual]
         evaluate: 'CI_COMMIT_AUTHOR_EMAIL != "renovate@mgrote.net"'
 ...