Do docker releases for pushes to release branches (#10330)

Co-authored-by: Lauris BH <lauris@nix.lv>

.drone.yml

@@ -580,6 +580,7 @@ depends_on:
 trigger:
   ref:
   - refs/heads/master
+  - "refs/heads/release/**"
   - "refs/tags/**"
 
 steps:
@@ -659,6 +660,7 @@ depends_on:
 trigger:
   ref:
   - refs/heads/master
+  - "refs/heads/release/**"
   - "refs/tags/**"
 steps:
   - name: fetch-tags
@@ -709,6 +711,7 @@ steps:
 trigger:
   ref:
   - refs/heads/master
+  - "refs/heads/release/**"
   - "refs/tags/**"
 
 depends_on: