style: sort imports in remaining tests and scripts

scripts/extract_mermaid.py

@@ -27,11 +27,11 @@ Usage:
     python3 scripts/extract_mermaid.py docs/implemented/ my_svgs/
 """
 
-import re
-import os
-import sys
-import subprocess
 import argparse
+import os
+import re
+import subprocess
+import sys
 
 # Chrome binary path discovery
 PUPPETEER_CACHE = os.environ.get(

scripts/publish_api_documentation.py

@@ -20,8 +20,8 @@
 import json
 
 from fastapi.openapi.docs import get_redoc_html, get_swagger_ui_html
-from gns3server.api.server import app
 
+from gns3server.api.server import app
 
 if __name__ == "__main__":
     with open("../docs/openapi.json", "w") as fd:

scripts/welcome.py

@@ -15,15 +15,16 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+import configparser
 import locale
-import re
 import os
+import re
+import subprocess
 import sys
 import time
-import subprocess
-import configparser
-from json import loads as convert
 import urllib.request
+from json import loads as convert
+
 from dialog import Dialog, PythonDialogBug