Allow callers to customize CLI options for test runner

Some projects use Jest for test coverage and some use the builtin
Node.js test runner. The two frameworks accept different CLI
options. Allow the calling workflow to customize the CLI options
for the test runner.

See nasa-gcn/architect-plugin-search#45.

.github/workflows/node.yml

@@ -2,6 +2,12 @@ name: Build and test Node.js
 
 on:
   workflow_call:
+    inputs:
+      test-options:
+        description: Arguments to pass to test runner
+        default: --coverage
+        required: false
+        type: string
 
 jobs:
   matrix:
@@ -38,6 +44,6 @@ jobs:
         # See https://prettier.io/docs/en/options.html#end-of-line
         if: ${{ runner.os != 'Windows' }}
       - name: Run unit tests
-        run: npm test --if-present -- --coverage
+        run: npm test --if-present -- ${{ inputs.test-options }}
       - name: Upload to Codecov.io
         uses: codecov/codecov-action@v3