Skip DB tests duplicate runs on push to branches (#23476)

This skips all testing-* pipelines on push to main or release/*
branches. This decreases the total build time on those, as in theory
they should already be run for PRs before merging.

Fixes https://github.com/go-gitea/gitea/issues/22011

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

.drone.yml

@@ -9,8 +9,6 @@ platform:
 
 trigger:
   event:
-    - push
-    - tag
     - pull_request
   paths:
     exclude:
@@ -180,8 +178,6 @@ depends_on:
 
 trigger:
   event:
-    - push
-    - tag
     - pull_request
   paths:
     exclude:
@@ -285,8 +281,6 @@ depends_on:
 
 trigger:
   event:
-    - push
-    - tag
     - pull_request
   paths:
     exclude:
@@ -449,8 +443,6 @@ depends_on:
 
 trigger:
   event:
-    - push
-    - tag
     - pull_request
   paths:
     exclude:
@@ -538,8 +530,6 @@ depends_on:
 
 trigger:
   event:
-    - push
-    - tag
     - pull_request
   paths:
     exclude:
@@ -627,8 +617,6 @@ depends_on:
 
 trigger:
   event:
-    - push
-    - tag
     - pull_request
   paths:
     exclude:
@@ -1477,7 +1465,7 @@ steps:
 ---
 kind: pipeline
 type: docker
-name: docker-linux-amd64-dry-run
+name: docker-linux-arm64-dry-run
 
 platform:
   os: linux
@@ -1487,8 +1475,8 @@ depends_on:
   - compliance
 
 trigger:
-  ref:
+  event:
-  - "refs/pull/**"
+    - pull_request
   paths:
     exclude:
       - docs/**