Avoid necessity to rename top level directory:

The top level directory in the zip file is suffixed with a commit hash
that relates to the downloaded test data repository. Subsequent steps in
the pipeline expect this directory have the name `test_data`. This snippet
avoids manual renaming of the extracted folder with each newer version
of the test data repository.

.github/workflows/cpu-tests.yml

@@ -179,7 +179,7 @@ jobs:
       - name: Download test data repository from RODARE
         shell: 'bash -c "docker exec -i mala-cpu python < {0}"'
         run: |
-          import requests
+          import requests, shutil, zipfile
 
           # This DOI represents all versions, and will always resolve to the latest one
           DOI = "https://doi.org/10.14278/rodare.2900"
@@ -204,12 +204,12 @@ jobs:
           with open("test-data.zip", mode="wb") as file:
             file.write(response.content)
 
-          # Once downloaded, we have to unzip the file. The name of the root
-          # folder in the zip file has to be updated for data repository
-          # updates as well - the string at the end is the hash of the data
-          # repository commit.
-          #unzip -q test-data-1.8.1.zip
-          #mv mala-project-test-data-741eda6 mala_data
+          # Get top level dir name
+          dir_name = zipfile.ZipFile("test-data.zip").namelist()[0]
+          shutil.unpack_archive("test-data.zip", ".")
+
+          print(f"Rename {dir_name} to mala_data")
+          shutil.move(dir_name, "mala_data")
 
       - name: Test mala
         shell: 'bash -c "docker exec -i mala-cpu bash < {0}"'