ci: update containerd@v2.1.0 integration testing

Signed-off-by: Austin Vazquez <macedonv@amazon.com>

Author: austinvazquez

.github/workflows/build.yml

@@ -83,7 +83,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ${{ fromJSON(needs.setup.outputs.available-runners) }}
-        containerd: ["1.6.38", "1.7.27", "2.0.5", "2.1.0-rc.1"]
+        containerd: ["1.6.38", "1.7.27", "2.0.5", "2.1.0"]
     env:
       DOCKER_BUILD_ARGS: "CONTAINERD_VERSION=${{ matrix.containerd }}"
     steps: