chore: bump version to 0.28.1 (#1243)

Patch release so that mcp_server and server lockfiles can drop the
diskcache transitive dependency once published, resolving dependabot
alerts #69 and #70.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: prasmussen15

mcp_server/pyproject.toml

@@ -7,7 +7,7 @@ requires-python = ">=3.10,<4"
 dependencies = [
     "mcp>=1.9.4",
     "openai>=1.91.0",
-    "graphiti-core[falkordb]==0.28.0",
+    "graphiti-core[falkordb]==0.28.1",
     "pydantic-settings>=2.0.0",
     "pyyaml>=6.0",
     "typing-extensions>=4.0.0",

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "graphiti-core"
 description = "A temporal graph building library"
-version = "0.28.0"
+version = "0.28.1"
 authors = [
     { name = "Paul Paliychuk", email = "paul@getzep.com" },
     { name = "Preston Rasmussen", email = "preston@getzep.com" },