Increased version number to 0.12.

Author: johnbywater

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "eventsourcing-sqlalchemy"
-version = "0.11"
+version = "0.12"
 description = "Python package for eventsourcing with SQLAlchemy."
 authors = [
     "John Bywater <john.bywater@appropriatesoftware.net>",
@@ -14,7 +14,6 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python",
 ]