ci: add slash command dispatch workflow

Co-Authored-By: AJ Steers <aj@airbyte.io>

Author: devin-ai-integration[bot]

.github/workflows/slash-command-dispatch.yml

@@ -0,0 +1,49 @@
+name: Slash Command Dispatch
+
+on:
+  issue_comment:
+    types: [created]
+
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+  actions: write
+
+jobs:
+  slashCommandDispatch:
+    # Only allow slash commands on pull request (not on issues)
+    if: ${{ github.event.issue.pull_request }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Authenticate as GitHub App
+        uses: actions/create-github-app-token@v2
+        id: get-app-token
+        with:
+          app-id: ${{ secrets.OCTAVIA_BOT_APP_ID }}
+          private-key: ${{ secrets.OCTAVIA_BOT_PRIVATE_KEY }}
+
+      - name: Slash Command Dispatch
+        id: dispatch
+        uses: peter-evans/slash-command-dispatch@v5
+        with:
+          repository: ${{ github.repository }}
+          token: ${{ steps.get-app-token.outputs.token }}
+          dispatch-type: workflow
+          issue-type: pull-request
+          commands: |
+            terraform-examples
+          static-args: |
+            pr=${{ github.event.issue.number }}
+            comment-id=${{ github.event.comment.id }}
+
+          # Only run for users with 'write' permission on the main repository
+          permission: write
+
+      - name: Edit comment with error message
+        if: steps.dispatch.outputs.error-message
+        uses: peter-evans/create-or-update-comment@v5
+        with:
+          comment-id: ${{ github.event.comment.id }}
+          body: |
+            > Error: ${{ steps.dispatch.outputs.error-message }}