Prepare for gz-sensors9.0.0~pre1 release (#465)

Signed-off-by: Ian Chen <[email protected]>

Author: iche033

CMakeLists.txt

@@ -16,7 +16,7 @@ find_package(gz-cmake4 REQUIRED)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-gz_configure_project(VERSION_SUFFIX)
+gz_configure_project(VERSION_SUFFIX pre1)
 
 #============================================================================
 # Set project-specific options

Changelog.md

@@ -2,6 +2,14 @@
 
 ### Gazebo Sensors 9.0.0 (2024-09-XX)
 
+1. **Baseline:** this includes all changes from 8.2.0 and earlier.
+
+1. Update badges to point to gz-sensors9
+    * [Pull request #463](https://github.com/gazebosim/gz-sensors/pull/463)
+
+1. Update changelog
+    * [Pull request #459](https://github.com/gazebosim/gz-sensors/pull/459)
+
 1. Fix SphericalCoordinate deprecation warning in DVL sensor
     * [Pull request #460](https://github.com/gazebosim/gz-sensors/pull/460)