changing to assignee (#3)

Reviewed-on: #3

scripts/create_pr_gitea.sh

@@ -24,7 +24,7 @@ HTTP_RESPONSE=$(curl --silent --show-error \
         \"base\": \"main\",
         \"title\": \"chore: dependency updates $(date +%Y-%m-%d)\",
         \"body\": $(echo "$DESCRIPTION" | python3 -c 'import json,sys; print(json.dumps(sys.stdin.read()))'),
-        \"assignees\": ["${CI_ASSIGNEE_ID}"]
+        \"assignee\": "${CI_ASSIGNEE_ID}"
     }" \
     "${CI_SERVER_URL}/api/v1/repos/${REPO}/pulls")