fix: remove the pytest module from dependencies

The pytest module isn't used in the lib and shouldn't be included in
this packages dependencies.

Also, generate the poetry.lock with a poetry client in version 1.3
(latest actually)

.github/workflows/pre-commit.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.9"]
-        poetry-version: ["1.2"]
+        poetry-version: ["1.3"]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v2

.github/workflows/pylama.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.9"]
-        poetry-version: ["1.2"]
+        poetry-version: ["1.3"]
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python-version }}

.github/workflows/tests.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.8", "3.9", "3.10", "3.11"]
-        poetry-version: ["1.2"]
+        poetry-version: ["1.3"]
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python-version }}