Improve CI (#3348) (#3351)

* Remove superfluous test.

* Use remote_temp_dir instead of output_dir on remote.

* Read certificate from correct place.

* Adjust more places.

* Fix boolean.

* Improve cryptography setup.

* Fix java_keystore changes.

* Need to copy binary from remote.

* Use correct Python for serve script.

* Sleep before downloading.

* Use correct Python interpreter.

* Avoid failing shebang test.

* Fix permission error with macOS 11.1.

* Avoid shebang trouble.

(cherry picked from commit 7c43cc3faa)

Co-authored-by: Felix Fontein <felix@fontein.de>

tests/integration/targets/git_config/tasks/setup_value.yml

@@ -9,5 +9,4 @@
 - name: set up with value (file)
   copy:
     src: gitconfig
-    dest: "{{ output_dir }}/gitconfig_file"
-...
+    dest: "{{ remote_tmp_dir }}/gitconfig_file"