ci/abi: use v3.19.0

Author: sreimers

.github/workflows/abi.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
       with:
-          ref: 'v3.17.0'
+          ref: 'v3.19.0'
           path: old
 
     - uses: actions/checkout@v4