misc/py-litellm: update to 1.28.7

Changelog:
- https://github.com/BerriAI/litellm/releases/tag/v1.27.15
- https://github.com/BerriAI/litellm/releases/tag/v1.28.0
- https://github.com/BerriAI/litellm/releases/tag/v1.28.1
- https://github.com/BerriAI/litellm/releases/tag/v1.28.2
- https://github.com/BerriAI/litellm/releases/tag/v1.28.3
- https://github.com/BerriAI/litellm/releases/tag/v1.28.4
- https://github.com/BerriAI/litellm/releases/tag/v1.28.6
- https://github.com/BerriAI/litellm/releases/tag/v1.28.7

Reported by:	Repology

Author: tagattie

misc/py-litellm/Makefile

@@ -1,5 +1,5 @@
 PORTNAME=	litellm
-DISTVERSION=	1.27.14
+DISTVERSION=	1.28.7
 CATEGORIES=	misc python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

misc/py-litellm/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1709120153
-SHA256 (litellm-1.27.14.tar.gz) = b7de72dc718dcd316a6d23df217cc1b28ce8298b44a994c9cb8d7e1d7a3bbeaf
-SIZE (litellm-1.27.14.tar.gz) = 3491095
+TIMESTAMP = 1709349142
+SHA256 (litellm-1.28.7.tar.gz) = bbdd0adfb6e04b746df334f91be64d6466ded030c36ef3fa420ddfe47ba09690
+SIZE (litellm-1.28.7.tar.gz) = 3498698