CI: test using cargo-insta

.github/workflows/ci.yaml

@@ -68,6 +68,11 @@ jobs:
       - name: Run clippy
         run: cargo clippy --all-targets --all-features -- -D warnings
 
+      - name: Install cargo-insta
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-insta
+
       - name: Install npcap on Windows
         # PRs cannot not be trusted with repository secrets
         if: (matrix.os == 'windows-latest') && (github.event_name != 'pull_request')
@@ -79,12 +84,12 @@ jobs:
           # see https://stackoverflow.com/a/1674950/5637701
           & "$env:TEMP/npcap-oem.exe" /S
 
-      - name: Run tests
+      - name: Run tests using cargo-insta
         id: run_tests
         # npcap is needed to run tests on Windows, so this is an unfortunate
         # sacrifice we have to make in the name of security
         if: (matrix.os != 'windows-latest') || (github.event_name != 'pull_request')
-        run: cargo test --verbose
+        run: cargo insta test
 
       - name: Upload snapshots of failed tests
         if: ${{ failure() && steps.run_tests.outcome == 'failure' }}