Development: devcontainer setup, docs and enable dependabot (#10081)

* fix: container setup and task description

* feat: enable dependabot for devcontainer

* fix: dont install latest uv and dont install uvx

* Cleanup decontainer readme

* Fix the reset venv command

---------

Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>

.devcontainer/Dockerfile

@@ -83,7 +83,8 @@ RUN set -eux \
     && apt-get update \
     && apt-get install --yes --quiet ${PYTHON_PACKAGES}
 
-COPY --from=ghcr.io/astral-sh/uv:0.6 /uv /bin/uv
+COPY --from=ghcr.io/astral-sh/uv:0.7.8 /uv /bin/uv
+
 
 RUN set -eux \
   && echo "Installing pre-built updates" \
@@ -128,7 +129,6 @@ RUN set -eux \
   && echo "Configuring ImageMagick" \
     && mv paperless-policy.xml /etc/ImageMagick-6/policy.xml
 
-COPY --from=ghcr.io/astral-sh/uv:0.6 /uv /bin/uv
 
 # Packages needed only for building a few quick Python
 # dependencies