Update to 0.22 alpha

Author: emilk

CMakeLists.txt

@@ -10,7 +10,7 @@ endif()
 
 # Rerun:
 include(FetchContent)
-FetchContent_Declare(rerun_sdk URL https://github.com/rerun-io/rerun/releases/download/0.21.0/rerun_cpp_sdk.zip)
+FetchContent_Declare(rerun_sdk URL https://build.rerun.io/commit/b56d993/rerun_cpp_sdk.zip) # TODO: https://github.com/rerun-io/rerun/releases/download/0.22.0/rerun_cpp_sdk.zip
 FetchContent_MakeAvailable(rerun_sdk)
 
 # VRS:

README.md

@@ -29,8 +29,8 @@ If you choose not to use pixi, you will need to install a few things yourself be
 The Rerun C++ SDK works by connecting to an awaiting Rerun Viewer over TCP.
 
 If you need to install the viewer, follow the [installation guide](https://www.rerun.io/docs/getting-started/installing-viewer). Two of the more common ways to install the Rerun Viewer are:
-* Via cargo: `cargo install rerun-cli@0.21.0`
-* Via pip: `pip install rerun-sdk==0.21.0`
+* Via cargo: `cargo install rerun-cli@0.22.0-alpha.2`
+* Via pip: `pip install rerun-sdk==0.22.0-alpha.2`
 
 After you have installed it, you should be able to type `rerun` in your terminal to start the viewer.