put miri in separate job

.github/workflows/rust.yml

@@ -35,6 +35,14 @@ jobs:
       run: cargo clippy --all-features --all-targets
 
   tests:
+    needs: [build]
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Tests
+      run: cargo test --verbose
+
+  miri:
     needs: [build]
     runs-on: ubuntu-latest
     steps:
@@ -43,9 +51,6 @@ jobs:
       run: |
         rustup toolchain install nightly --component miri
         cargo +nightly miri setup
-
-    - name: Tests
-      run: cargo test --verbose
     - name: Miri
       run: cargo +nightly miri test --verbose