Cache keyed by test files

.github/workflows/run-snakemake.yml

@@ -25,7 +25,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: tests/rawdata
-          key: rawdata1
+          key: rawdata-${{ hashFiles('tests/**') }}
 
       - name: setup data
         shell: bash -el {0}