Update to Poetry 2.0.0 and refactor project configuration (#492)

Author: tasansal

.github/workflows/constraints-poetry.txt

@@ -1 +1 @@
-poetry==1.8.5
+poetry==2.0.0

.github/workflows/tests.yml

@@ -59,6 +59,7 @@ jobs:
       - name: Install Poetry
         run: |
           pipx install --pip-args="-c ${{ github.workspace }}/.github/workflows/constraints-poetry.txt" poetry
+          pipx inject poetry poetry-plugin-export
           poetry --version
 
       - name: Install Nox
@@ -130,6 +131,7 @@ jobs:
       - name: Install Poetry
         run: |
           pipx install --pip-args="-c ${{ github.workspace }}/.github/workflows/constraints-poetry.txt" poetry
+          pipx inject poetry poetry-plugin-export
           poetry --version
 
       - name: Install Nox