Use voiptests@wip.

Author: sobomax

.github/workflows/.rtp.io.yml

@@ -89,6 +89,7 @@ jobs:
       with:
         repository: 'sippy/voiptests'
         path: dist/voiptests
+        ref: wip
 
     - name: Checkout RTPProxy repo
       uses: actions/checkout@v4
@@ -150,6 +151,7 @@ jobs:
       with:
         repository: 'sippy/voiptests'
         path: dist/voiptests
+        ref: wip
 
     - name: Checkout RTPProxy repo
       uses: actions/checkout@v4

.github/workflows/rtp.io.yml

@@ -51,6 +51,7 @@ jobs:
       with:
         repository: 'sippy/voiptests'
         path: dist/voiptests
+        ref: wip
 
     - name: Checkout RTPProxy repo
       uses: actions/checkout@v5