py-passlib: Access actual bcrypt version

Recent bcrypt package no longer has __about__ field, the version is directly
under __version__.

Noticed via:

 python3 -c 'import passlib.apache'

PKGREVISION++

security/py-passlib/Makefile

@@ -1,8 +1,8 @@
-# $NetBSD: Makefile,v 1.10 2022/01/04 20:54:43 wiz Exp $
+# $NetBSD: Makefile,v 1.11 2024/01/01 16:19:57 leot Exp $
 
 DISTNAME=	passlib-1.7.4
 PKGNAME=	${PYPKGPREFIX}-${DISTNAME}
-PKGREVISION=	1
+PKGREVISION=	2
 CATEGORIES=	security python
 MASTER_SITES=	${MASTER_SITE_PYPI:=p/passlib/}
 

security/py-passlib/distinfo

@@ -1,5 +1,6 @@
-$NetBSD: distinfo,v 1.9 2021/10/26 11:17:48 nia Exp $
+$NetBSD: distinfo,v 1.10 2024/01/01 16:19:57 leot Exp $
 
 BLAKE2s (passlib-1.7.4.tar.gz) = 7007ebe597e6b68cd7a180195629a5531b5a4f80374c00c1166561c030c45084
 SHA512 (passlib-1.7.4.tar.gz) = 350bd6da5ac57e6c266ffe8bf9684c8c2cce3fc6b513eb6c7bc1b302d2d8a1b701e9c01c953782520a2ac37b7ec1f6d7bd5855f99f6ee0e2dbbf33f2d49a9530
 Size (passlib-1.7.4.tar.gz) = 689844 bytes
+SHA1 (patch-passlib_handlers_bcrypt.py) = f67386201a22d37dd502926a26d07741ded1daf1

security/py-passlib/patches/patch-passlib_handlers_bcrypt.py

@@ -0,0 +1,16 @@
+$NetBSD: patch-passlib_handlers_bcrypt.py,v 1.1 2024/01/01 16:19:57 leot Exp $
+
+Version is available under __version__, __about__ field no longer
+exists.
+
+--- passlib/handlers/bcrypt.py.orig	2024-01-01 16:12:38.252193463 +0000
++++ passlib/handlers/bcrypt.py
+@@ -617,7 +617,7 @@ class _BcryptBackend(_BcryptCommon):
+         except ImportError: # pragma: no cover
+             return False
+         try:
+-            version = _bcrypt.__about__.__version__
++            version = _bcrypt.__version__
+         except:
+             log.warning("(trapped) error reading bcrypt version", exc_info=True)
+             version = '<unknown>'