fix: set correct Git repo paths for testscripts

tasks/install_test_scripts.yml

@@ -23,9 +23,8 @@
   loop:
     # runs all the pre-/post-upgrade tests on Rosetta and SubApp servers
     - dest: "rosetta_update_test/"
-      repo: "{{ vault_slub_git_repo_url }}slub-digitalpreservation/rosetta_update_test.git"
+      repo: "git@{{ vault_slub_git_repo_fqdn }}:slub-digitalpreservation/rosetta_update_test.git"
       version: "42896a70"
     # runs the Exit Strategy script to build an emergency database
     - dest: "rosettaExitStrategy/"
-      repo: "{{ vault_slub_git_repo_url }}slub-digitalpreservation/rosettaExitStrategy.git"
-      version: "63e18fa0"
+      repo: "git@{{ vault_slub_git_repo_fqdn }}:slub-digitalpreservation/rosettaExitStrategy.git"