ultralytics 8.0.51 add assets and CI actions (#1296)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Paul Kehrer <paulhkehrer@gmail.com>

.github/workflows/publish.yml

@@ -0,0 +1,67 @@
+# Ultralytics YOLO 🚀, GPL-3.0 license
+# Publish pip package to PyPI https://pypi.org/project/ultralytics/ and Docs to https://docs.ultralytics.com
+
+name: Publish to PyPI and Deploy Docs
+
+on:
+  workflow_dispatch:
+    inputs:
+      pypi:
+        type: boolean
+        description: Publish to PyPI
+      docs:
+        type: boolean
+        description: Deploy Docs
+  push:
+    branches: [main]
+
+jobs:
+  publish:
+    if: github.repository == 'ultralytics/ultralytics' && github.actor == 'glenn-jocher'
+    name: Publish
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Set up Python environment
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+          cache: 'pip' # caching pip dependencies
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip wheel build twine
+          pip install -e '.[dev]' --extra-index-url https://download.pytorch.org/whl/cpu
+      - name: Check PyPI version
+        shell: python
+        run: |
+          import pkg_resources as pkg
+          import ultralytics
+          import os
+          from ultralytics.yolo.utils.checks import check_latest_pypi_version
+
+          v_local = pkg.parse_version(ultralytics.__version__).release
+          v_pypi = pkg.parse_version(check_latest_pypi_version()).release
+          print(f'Local version is {v_local}')
+          print(f'PyPI version is {v_pypi}')
+          d = [a - b for a, b in zip(v_local, v_pypi)]  # diff
+          increment = (d[0] == d[1] == 0) and d[2] == 1  # only patch increment by 1
+          os.system(f'echo "increment={increment}" >> $GITHUB_OUTPUT')
+          if increment:
+              print('Local version is higher than PyPI version. Publishing new version to PyPI ✅.')
+        id: check_pypi
+      - name: Publish to PyPI
+        continue-on-error: true
+        if: (github.event_name == 'push' || github.event.inputs.pypi == 'true')  && steps.check_pypi.outputs.increment == 'True'
+        env:
+          PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}
+        run: |
+          python -m build
+          python -m twine upload dist/* -u __token__ -p $PYPI_TOKEN
+      - name: Deploy Docs
+        continue-on-error: true
+        if: (github.event_name == 'push' && steps.check_pypi.outputs.increment == 'True') || github.event.inputs.docs == 'true'
+        run: |
+          mkdocs gh-deploy || true
+          git checkout gh-pages
+          git push https://github.com/ultralytics/docs gh-pages --force