chore: prepare for reusable workflows (#590)

Other part of PR apify/apify-docs-private#31

---------

Co-authored-by: František Nesveda <fnesveda@users.noreply.github.com>
Co-authored-by: František Nesveda <frantisek@apify.com>

Author: lukasmrtvy

.github/workflows/deploy.yaml

@@ -0,0 +1,15 @@
+name: 'Deploy'
+
+on:
+  push:
+    paths:
+    - 'nginx.conf'
+
+jobs:
+  deploy:
+      name: 'Deploy NGINX'
+      runs-on: ubuntu-latest
+      steps:
+        - run: gh workflow run deploy.yaml --repo apify/apify-docs-private
+          env:
+            GITHUB_TOKEN: ${{ secrets.APIFY_SERVICE_ACCOUNT_GITHUB_TOKEN }}

.github/workflows/invalidate.yaml

@@ -0,0 +1,13 @@
+name: 'Invalidate'
+
+on:
+  workflow_dispatch:
+
+jobs:
+  invalidate:
+      name: 'Invalidate CloudFront'
+      runs-on: ubuntu-latest
+      steps:
+        - run: gh workflow run invalidate.yaml --repo apify/apify-docs-private
+          env:
+            GITHUB_TOKEN: ${{ secrets.APIFY_SERVICE_ACCOUNT_GITHUB_TOKEN }}