Add a prod upgrade workflow

Author: tmthecoder

.github/workflows/production_push.yml

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+# This is a basic workflow to help you get started with Actions
+
+name: Upgrade Website to Production
+
+# Controls when the workflow will run
+on:
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v3
+
+      # Runs a single command using the runners shell
+      - name: Checkout Preview Branch
+        run: git checkout preview
+
+      # Runs a set of commands using the runners shell
+      - name: Create & Push to Production
+        run: |
+          git checkout -b production
+          git add .
+          git commit -m "Upgraded to production @tmthecoder/portfolio's preview branch"
+          git push --force origin production