Solve issue with ref on distributable dispatch.

Author: viferga

.github/workflows/linux-test.yml

@@ -76,4 +76,4 @@ jobs:
           workflow_file_name: ci.yml
           wait_workflow: true
           client_payload: '{"ref": "${{ github.head_ref || github.ref_name }}"}'
-          ref: ${{ github.head_ref || github.ref_name }}
+          ref: master

.github/workflows/macos-test.yml

@@ -121,4 +121,4 @@ jobs:
           workflow_file_name: ci.yml
           wait_workflow: true
           client_payload: '{"ref": "${{ github.head_ref || github.ref_name }}"}'
-          ref: ${{ github.head_ref || github.ref_name }}
+          ref: master

.github/workflows/windows-test.yml

@@ -80,4 +80,4 @@ jobs:
           workflow_file_name: ci.yml
           wait_workflow: true
           client_payload: '{"ref": "${{ github.head_ref || github.ref_name }}"}'
-          ref: ${{ github.head_ref || github.ref_name }}
+          ref: master