Fix ruff error and script (#2680)

Author: aminalaee

httpx/_utils.py

@@ -464,14 +464,14 @@ def __eq__(self, other: typing.Any) -> bool:
 def is_ipv4_hostname(hostname: str) -> bool:
     try:
         ipaddress.IPv4Address(hostname.split("/")[0])
-    except:
+    except Exception:
         return False
     return True
 
 
 def is_ipv6_hostname(hostname: str) -> bool:
     try:
         ipaddress.IPv6Address(hostname.split("/")[0])
-    except:
+    except Exception:
         return False
     return True

scripts/check

@@ -11,4 +11,4 @@ set -x
 ./scripts/sync-version
 ${PREFIX}black --check --diff --target-version=py37 $SOURCE_FILES
 ${PREFIX}mypy $SOURCE_FILES
-${PREFIX}ruff check --diff $SOURCE_FILES
+${PREFIX}ruff check $SOURCE_FILES