Fix CI runs on push/merge to develop and stable

This emulates the previous effective behaviour of only
running tests on pull requests and skipping straight
to building artefacts and docs after merge.
Pull requests which do not pass tests shouldn’t be merged in the first place.

.woodpecker/build-amd64.yml

@@ -1,9 +1,6 @@
 labels:
   platform: linux/amd64
 
-depends_on:
-  - test
-
 when:
   event:
     - push

.woodpecker/build-arm64.yml

@@ -1,9 +1,6 @@
 labels:
   platform: linux/arm64
 
-depends_on:
-  - test
-
 when:
   event:
     - push

.woodpecker/docs.yml

@@ -2,7 +2,6 @@ labels:
   platform: linux/amd64
 
 depends_on:
-  - test
   - build-amd64
 
 when:

.woodpecker/test.yml

@@ -3,10 +3,6 @@ labels:
 
 when:
   - event: pull_request
-  - event: push
-    branch:
-      - develop
-      - stable
 
 matrix:
   # test the lowest and highest versions