feat: add scheduled hourly test runs with Slack notifications

.github/workflows/scheduled-tests.yml

@@ -0,0 +1,68 @@
+name: Scheduled Tests
+
+on:
+  schedule:
+    # Run every hour
+    - cron: "0 * * * *"
+  workflow_dispatch: # Allow manual triggering for testing
+
+jobs:
+  test:
+    name: Run All Tests
+    runs-on:
+      group: ubuntu-latest-large
+    permissions:
+      contents: read
+      id-token: write
+      actions: read
+
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+      - name: Set up Go
+        uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+        with:
+          go-version-file: "go.mod"
+
+      - name: Set up Python
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        with:
+          python-version: "3.9"
+
+      - name: Set up Node
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version: "16.x"
+          registry-url: "https://registry.npmjs.org"
+
+      - name: Set up gotestfmt
+        run: go install github.com/gotesttools/gotestfmt/v2/cmd/gotestfmt@latest
+
+      - name: Configure git for private modules
+        env:
+          GIT_AUTH_TOKEN: ${{ secrets.BOT_REPO_TOKEN }}
+        run: git config --global url."https://speakeasybot:${GIT_AUTH_TOKEN}@github.com".insteadOf "https://github.com"
+
+      - name: Build
+        run: go build ./...
+
+      - name: Run Tests
+        id: test
+        run: |
+          go test -json -v -p 1 -timeout=20m ./... | gotestfmt
+        env:
+          SPEAKEASY_API_KEY: ${{ secrets.SPEAKEASY_API_KEY }}
+
+      - name: Notify Slack on Failure
+        if: failure()
+        uses: 8398a7/action-slack@807a8cb6243c41285b60b87ea5da7c6c5b1de3b9 # v3.18.0
+        with:
+          status: failure
+          text: |
+            :x: Scheduled tests failed!
+
+            *Workflow:* ${{ github.workflow }}
+            *Job:* ${{ github.job }}
+            *Branch:* ${{ github.ref }}
+            *Run:* ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+          webhook_url: ${{ secrets.SLACK_DEV_SDKS_WEBHOOK_URL }}