ci: Remove selecting runner based on platform

I upgraded the ci hardware and improved the caching a lot, so this
should be a problem any more and since I now mostly run x64 platforms...

.woodpecker/cleanup.yml

@@ -2,8 +2,6 @@ depends_on:
   - oci-image-build
 
 skip_clone: true
-# runs always
-runs_on: [ success, failure ]
 
 when:
   event: [tag, push, manual]

.woodpecker/oci-image-build.yml

@@ -7,13 +7,14 @@ matrix:
     - monolith
   PLATFORM:
     - linux/amd64
+    - linux/arm64
 
 depends_on:
   - oci-image-cache-build
 
 steps:
   build-only:
-    image: woodpeckerci/plugin-docker-buildx:4.1.0
+    image: woodpeckerci/plugin-docker-buildx:2.3.0
     settings:
       registry: rg.fr-par.scw.cloud/hamburghammer
       username: nologin
@@ -34,7 +35,7 @@ steps:
           exclude: [main]
 
   build:
-    image: woodpeckerci/plugin-docker-buildx:4.1.0
+    image: woodpeckerci/plugin-docker-buildx:2.3.0
     settings:
       registry: rg.fr-par.scw.cloud/hamburghammer
       username: nologin

.woodpecker/oci-image-cache-build.yml

@@ -1,6 +1,7 @@
 matrix:
   PLATFORM:
     - linux/amd64
+    - linux/arm64
 
 depends_on:
   - java
@@ -11,7 +12,7 @@ when:
 
 steps:
   build:
-    image: woodpeckerci/plugin-docker-buildx:4.1.0
+    image: woodpeckerci/plugin-docker-buildx:2.3.0
     settings:
       registry: rg.fr-par.scw.cloud/hamburghammer
       username: nologin