ci: use --all-targets for cargo check and test

The previous invocations were **not** checking example code for build
errors, and if any unit tests were specified in examples they would be
skipped.

.github/workflows/ci.yml

@@ -89,14 +89,14 @@ jobs:
       uses: dtolnay/rust-toolchain@stable
     - run: echo "VCPKG_ROOT=$env:VCPKG_INSTALLATION_ROOT" | Out-File -FilePath $env:GITHUB_ENV -Append
     - run: vcpkg install openssl:x64-windows-static-md
-    - name: Run cargo check --workspace
-      run: cargo check --workspace
+    - name: Run cargo check --workspace --all-targets
+      run: cargo check --workspace --all-targets
     - name: Run the tests
-      run: cargo test --workspace
+      run: cargo test --workspace --all-targets
     - name: Run the tests with x509-parser enabled
-      run: cargo test --verbose --features x509-parser
+      run: cargo test --verbose --features x509-parser --all-targets
     - name: Run the tests with no default features enabled
-      run: cargo test --verbose --no-default-features
+      run: cargo test --verbose --no-default-features --all-targets
 
   build:
     strategy:
@@ -128,14 +128,14 @@ jobs:
       uses: dtolnay/rust-toolchain@master
       with:
         toolchain: ${{ matrix.toolchain }}
-    - name: Run cargo check --workspace
-      run: cargo check --workspace
+    - name: Run cargo check --workspace --all-targets
+      run: cargo check --workspace --all-targets
     - name: Run the tests
-      run: cargo test --workspace
+      run: cargo test --workspace --all-targets
     - name: Run the tests with x509-parser enabled
-      run: cargo test --verbose --features x509-parser
+      run: cargo test --verbose --features x509-parser --all-targets
     - name: Run the tests with no default features enabled
-      run: cargo test --verbose --no-default-features
+      run: cargo test --verbose --no-default-features --all-targets
 
   coverage:
     name: Measure coverage