Refactor build/test workflow to use explicit stable release

Author: jmacdonald

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-name: Test
+name: Build and Test
 
 on:
   push:
@@ -10,9 +10,14 @@ env:
   CARGO_TERM_COLOR: always
 
 jobs:
-  test:
+  build_and_test:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        toolchain:
+          - stable
     steps:
-    - uses: actions/checkout@v4
-    - name: Run tests
-      run: cargo test --verbose
+      - uses: actions/checkout@v4
+      - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
+      - run: cargo build --verbose
+      - run: cargo test --verbose