chore: bump version to 2.3.1 for --strict-blocking feature

Bumped version from 2.2.63 to 2.3.1 following semantic versioning
(minor version bump for new feature).

This version number avoids conflict with the mucha-dev-gitlab-security-output
branch which uses 2.3.0 for the GitLab Security Dashboard feature.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: Jonathan Mucha

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "socketsecurity"
-version = "2.2.63"
+version = "2.3.1"
 requires-python = ">= 3.10"
 license = {"file" = "LICENSE"}
 dependencies = [