upload sha256 sums

Author: calebdoxsey

.github/workflows/release.yaml

@@ -26,6 +26,9 @@ jobs:
         run: |
           bazelisk build --curses=no --show_task_finish --verbose_failures --action_env=PATH=/usr/local/bin:/opt/local/bin:/usr/bin:/bin:$PATH --test_output=all -c "opt" //source/exe:envoy-static --config=sizeopt
           mv bazel-bin/source/exe/envoy-static envoy-darwin-amd64
+      - name: shasum
+        run: |
+          shasum -a 256 envoy-darwin-amd64 envoy-darwin-amd64.sha256
       - name: Upload binaries to release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -66,6 +69,11 @@ jobs:
         run: |
           go run . ${{steps.tagName.outputs.tag}}
 
+      - name: shasum
+        run: |
+          shasum -a 256 envoy-linux-amd64 envoy-linux-amd64.sha256
+          shasum -a 256 envoy-linux-arm64 envoy-linux-arm64.sha256
+
       - name: Upload binaries to release
         working-directory: fetchenvoy
         env: