refactor: fix bandit issues

Author: waketzheng

pyproject.toml

@@ -225,4 +225,6 @@ exclude_dirs = [
     "examples/*/_tests.py",
     "conftest.py",
     "tortoise/migrations/schema_editor/mssql.py",
+    "examples/postgres_full_text_search.py",
+    "examples/postgres.py",
 ]

tortoise/backends/base/config_generator.py

@@ -23,7 +23,7 @@
             "hostname": "host",
             "port": "port",
             "username": "user",
-            "password": "password",
+            "password": "password",  # nosec:B105
         },
         "defaults": {"port": 5432},
         "cast": {
@@ -45,7 +45,7 @@
             "hostname": "host",
             "port": "port",
             "username": "user",
-            "password": "password",
+            "password": "password",  # nosec:B105
         },
         "defaults": {"port": 5432},
         "cast": {
@@ -77,7 +77,7 @@
             "hostname": "host",
             "port": "port",
             "username": "user",
-            "password": "password",
+            "password": "password",  # nosec:B105
         },
         "defaults": {"port": 3306, "charset": "utf8mb4", "sql_mode": "STRICT_TRANS_TABLES"},
         "cast": {
@@ -97,7 +97,7 @@
             "hostname": "host",
             "port": "port",
             "username": "user",
-            "password": "password",
+            "password": "password",  # nosec:B105
         },
         "defaults": {"port": 1433},
         "cast": {
@@ -114,7 +114,7 @@
             "hostname": "host",
             "port": "port",
             "username": "user",
-            "password": "password",
+            "password": "password",  # nosec:B105
         },
         "defaults": {"port": 1521},
         "cast": {