Add release notes for v3.0.2

content/post/2023-09-28-version-3.0.2.md

+---
+# SPDX-FileCopyrightText: 2023 CERN and the Allpix Squared authors
+# SPDX-License-Identifier: CC-BY-4.0
+title: "Patch Release 3.0.2"
+date: 2023-09-28T12:23:13+02:00
+draft: false
+---
+
+We are happy to announce the second patch release in the 3.0 series of **Allpix Squared, version 3.0.2**.
+This release contains 11 merge requests with 43 commits over the previous patch version 3.0.1 and fixes a few issues found over the summer.
+The release is available as Docker image, CVMFS installation and source code from the [repository](https://gitlab.cern.ch/allpix-squared/allpix-squared/).
+
+The following issues have been resolved and improvements have been made:
+<!--more-->
+
+
+* **Core**:
+    * Correctly calculate the intersection of particles with rectangular implants. Before any configured offset from the center was ignored.
+    * The geometry manager is not not thrown off by invalid configuration files in model search directories, they are simply ignored.
+* **Module GeometryBuilderG4:**
+    * Enable discovery of newer Geant4 installations which do not set data directory environment variables individually anymore (G4 > 11.0)
+* **Module DepositionGeant4:**
+    * Do not manually register radioactive decay physics lists when using the `_HP` (high precision) pre-defined lists as they already contain the radioactive decay lists.
+    * When calculating the number of generated electron-hole pairs, do not truncate the result since this causes a bias towards lower energies.
+* **Module DetectorHistogrammer:**
+    * Correctly generate the hitmap in global coordinates
+    * The boundaries of the global hitmap are now calculated around the global position of the respective sensor.
+* **Module ROOTObjectWriter:**
+    * The module now prints warnings of the current configuration would lead to excessive amounts of data being written. This does
+      not affect the capabilities of the module but just adds a warning for unusual and possibly undesired configurations
+* **Continuous Integration / Build System:**
+    * Switched to Kaniko Docker image building environment
+    * When looking for unit tests, ignore files lacking the proper extension in CMake