GitHub Action to build pack artifacts

.github/ISSUE_TEMPLATE/mod_support.md

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+---
+name: Mod Support
+about: Compatibility improvements with a specific mod
+title: 'MOD NAME HERE (url here)'
+labels: mod support
+assignees: ''
+
+---

.github/workflows/assemble.yml

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+name: Execute Python Script
+
+on: [ push, pull_request ]
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+      - name: Set current date as env variable
+        run: echo "DATE=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v3
+        with:
+          python-version: "3.10"
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install pillow
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+      - name: Execute Python Script
+        run: python gen-pack.py ${{ env.DATE }}-${{ github.repository_owner }}
+      - name: Upload artifacts to GitHub
+        uses: actions/upload-artifact@v4
+        with:
+          name: Better Leaves Lite Artifact
+          path: Better-Leaves-Lite-${{ env.DATE }}-${{ github.repository_owner }}.zip