chore: monthly updates for July'23

- migrate to `pdm` from `poetry`
- update dependencies
- improvises `dockerfile` (drops `containerfile`)
- only `python` & `pip` are required in ci/cd
- adds `compose.yml`
- simplifies local & containerized development

containerfile

@@ -1,28 +0,0 @@
-FROM python:slim-bullseye
-
-WORKDIR /root/waka-readme/
-
-ENV PYTHONFAULTHANDLER=1 \
-    PYTHONUNBUFFERED=1 \
-    PYTHONHASHSEED=random \
-    PYTHONDONTWRITEBYTECODE=1 \
-    # pip:
-    PIP_NO_CACHE_DIR=off \
-    PIP_DISABLE_PIP_VERSION_CHECK=on \
-    PIP_DEFAULT_TIMEOUT=100 \
-    # poetry:
-    # POETRY_VERSION= \
-    POETRY_NO_INTERACTION=1 \
-    POETRY_CACHE_DIR=/var/cache/pypoetry \
-    PATH=${PATH}:/root/.local/bin
-
-# import project
-ADD waka-readme.tar.gz .
-
-# install poetry & dependencies
-RUN apt-get update && apt-get install --no-install-recommends -y curl git micro \
-    && curl -sSL https://install.python-poetry.org | python - \
-    && poetry install --no-root --no-ansi
-
-# copy and run program
-CMD [ "sleep", "infinity" ]