run shim test in acceptance test CI workflow

This runs as its own job rather than as part of the language matrix,
because it only needs to be done once.

Signed-off-by: Michael Bridgen <mbridgen@pulumi.com>

.github/workflows/run-acceptance-tests.yml

@@ -240,6 +240,22 @@ jobs:
     steps:
     - name: Is workflow a success
       run: echo yes
+
+  go_test:
+    if: github.event_name == 'repository_dispatch' ||
+      github.event.pull_request.head.repo.full_name == github.repository
+    name: Run go tests
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout Repo
+      uses: actions/checkout@v3
+      with:
+        ref: ${{ env.PR_COMMIT_SHA }}
+        submodules: true
+    - run: |
+        cd provider/shim
+        go test -v .
+
   test:
     if: github.event_name == 'repository_dispatch' ||
       github.event.pull_request.head.repo.full_name == github.repository