Try to fix build.

Author: TreyE

.github/workflows/downstream.yml

@@ -2,8 +2,6 @@ name: Downstream
 
 on:
   workflow_dispatch:
-    branches:
-      - trunk
   push:
     branches:
       - trunk

.github/workflows/tests.yml

@@ -11,7 +11,7 @@ jobs:
       with:
         ruby-version: 2.6.3
     - name: Cache Gems
-      uses: actions/cache@v1
+      uses: actions/cache@v4
       with:
         path: vendor/bundle
         key: ${{ runner.os }}-acapi-2.6.3-${{ hashFiles('**/Gemfile.lock') }}