fix: accept new SSH hostkeys on first connection for GitLab clone operation

tasks/compile_callas_binaries.yml

@@ -25,6 +25,7 @@
     dest: "/opt/pdfa_webservice/"
     depth: 1
     key_file: "/tmp/id_ed25519_deploykey"
+    ssh_opts: "-o StrictHostKeyChecking=accept-new"
 #   delegate_to: 127.0.0.1
 
 # - name: copy PDF/A-Webservice Git repo to managed host