actions: Cache examples too

Author: danopia

.github/workflows/deno-ci.yaml

@@ -12,14 +12,20 @@ jobs:
     name: Deno ${{ matrix.deno-version }}
     strategy:
       matrix:
-        deno-version: ["v1.x", "nightly"]
+        deno-version: ["v1.4", "v1.5", "nightly"]
 
     steps:
     - name: Checkout source
       uses: actions/checkout@v2
+
     - name: Use Deno ${{ matrix.deno-version }}
       uses: denolib/setup-deno@v2
       with:
         deno-version: ${{ matrix.deno-version }}
+
     - name: Check mod.ts
       run: time deno cache --reload mod.ts
+    - name: Check example.ts
+      run: time deno cache example.ts
+    - name: Check examples/emit-metrics.ts
+      run: time deno cache --unstable examples/emit-metrics.ts