[Automation] Add GH action to add issues to ingest board

Issues in this repo labeled with `Team:Fleet` will be added to the ingest board automatically w/ the `Fleet Server` area.

Author: kpollich

.github/workflows/add-issues-to-ingest-board.yml

@@ -0,0 +1,51 @@
+name: Add issue to Platform Ingest project
+
+on:
+  issues:
+    types:
+      - labeled
+      
+env:
+  INGEST_PROJECT_ID: 'PVT_kwDOAGc3Zs4AEzn4'
+  FLEET_LABEL: 'Team:Fleet'
+  AREA_FIELD_ID: 'PVTSSF_lADOAGc3Zs4AEzn4zgEgZSo'
+  FLEET_SERVER_OPTION_ID: 'ea828bb4'
+
+jobs:
+  add_to_ingest_project:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: octokit/graphql-action@v2.x
+        id: add_to_project
+        if: ${{ github.event.label.name == env.FLEET_LABEL }}
+        with:
+          query: |
+            # Variables have to be snake cased because of https://github.com/octokit/graphql-action/issues/164
+            mutation AddToIngestProject($project_id: ID!, $content_id: ID!) {
+              addProjectV2ItemById(input: { projectId: $project_id, contentId: $content_id }) {
+                  item {
+                    id
+                  }
+                }
+              }
+          project_id: ${{ env.INGEST_PROJECT_ID }}
+          content_id: ${{ github.event.issue.node_id }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.FLEET_TECH_KIBANA_USER_TOKEN }}
+      - uses: octokit/graphql-action@v2.x
+        id: set_fleet_server_area
+        if: github.event.label.name == env.FLEET_LABEL
+        with:
+          query: |
+            mutation updateIngestArea($item_id: ID!, $project_id: ID!, $area_field_id: ID!, $area_id: String) {
+              updateProjectV2ItemFieldValue(
+                input: { itemId: $item_id, projectId: $project_id, fieldId: $area_field_id, value: { singleSelectOptionId: $area_id } }) {
+                  clientMutationId
+                }
+              }
+          item_id: ${{ fromJSON(steps.add_to_project.outputs.data).addProjectV2ItemById.item.id }}
+          project_id: ${{ env.INGEST_PROJECT_ID }}
+          area_field_id: ${{ env.AREA_FIELD_ID }}
+          area_id: ${{ env.FLEET_SERVER_OPTION_ID }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.PROJECT_ASSIGNER_TOKEN }}