Add miri to CI

.github/workflows/test.yml

@@ -63,3 +63,16 @@ jobs:
       with:
         command: check
         args: --no-default-features
+
+  miri:
+    name: "Miri"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Miri
+        run: |
+          rustup toolchain install nightly --component miri
+          rustup override set nightly
+          cargo miri setup
+      - name: Test with Miri
+        run: cargo miri test --no-fail-fast