Migrate AutoGPT agent to poetry (#5219)

Inspired by #1102

* Migrate AutoGPT agent to poetry

  Co-authored-by: rickythefox <richard@ginzburg.se>

* Rewrite automatic dependency check (check_requirements.py) for poetry

* Sort dependencies

* Add instructions for poetry to README

.github/workflows/benchmarks.yml

@@ -39,13 +39,13 @@ jobs:
       - name: Set up Python dependency cache
         uses: actions/cache@v3
         with:
-          path: ~/.cache/pip
-          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}-${{ steps.get_date.outputs.date }}
+          path: ~/.cache/pypoetry
+          key: ${{ runner.os }}-poetry-${{ hashFiles('autogpts/autogpt/pyproject.toml') }}-${{ steps.get_date.outputs.date }}
 
       - name: Install Python dependencies
         run: |
-          python -m pip install --upgrade pip
-          pip install -r requirements.txt
+          curl -sSL https://install.python-poetry.org | python3 -
+          poetry install
 
       - name: Run pytest with coverage
         run: |