fix(ci): remove redundant workflow_dispatch — push already triggers build

trigger-desktop.yml was pushing a submodule bump commit (which fires
release.yml via the push event) AND then explicitly dispatching
release.yml via the API, causing every cinny push to produce two
back-to-back desktop builds. Drop the dispatch step; the push alone
is sufficient.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/trigger-desktop.yml

@@ -22,20 +22,8 @@ jobs:
           git -C cinny checkout "$CINNY_SHA"
           git add cinny
           if git diff --cached --quiet; then
-            echo "Submodule already at $CINNY_SHA"
+            echo "Submodule already at $CINNY_SHA, nothing to do"
           else
             git commit -m "chore: bump cinny submodule to ${CINNY_SHA:0:8}"
             git push origin main
           fi
-
-      - name: Dispatch cinny-desktop release build
-        env:
-          TOKEN: ${{ secrets.ACTIONS_TOKEN }}
-        run: |
-          HTTP=$(curl -s -o /tmp/resp.txt -w "%{http_code}" -X POST \
-            "https://code.lotusguild.org/api/v1/repos/LotusGuild/cinny-desktop/actions/workflows/release.yml/dispatches" \
-            -H "Authorization: token $TOKEN" \
-            -H "Content-Type: application/json" \
-            -d '{"ref":"main"}')
-          echo "HTTP $HTTP: $(cat /tmp/resp.txt)"
-          [ "$HTTP" = "204" ] || [ "$HTTP" = "200" ] || { echo "Dispatch failed"; exit 1; }