[Docker] Fix broken image (#6621)

* Install grpcio faster

- Pin version
- Update build packages

* Test dockerfile before push

- SImply test if invoke is present

* Revert commit to docker-compose

* Remove VIRTUAL_ENV from Dockerfile

* Fix pip install

* Run extra checks on docker image

* Ensure mariadb links are installed:

- Closes https://github.com/inventree/InvenTree/issues/6625

* Adjust CI

 build docker image manually

* Should fail

- Test that revert fails CI

* Ok, this should break it

* Fix Dockerfile

Dockerfile

@@ -48,8 +48,6 @@ ENV INVENTREE_BACKGROUND_WORKERS="4"
 ENV INVENTREE_WEB_ADDR=0.0.0.0
 ENV INVENTREE_WEB_PORT=8000
 
-ENV VIRTUAL_ENV=/usr/local
-
 LABEL org.label-schema.schema-version="1.0" \
       org.label-schema.build-date=${DATE} \
       org.label-schema.vendor="inventree" \
@@ -65,8 +63,11 @@ RUN apk add --no-cache \
     libjpeg libwebp zlib \
     # Weasyprint requirements : https://doc.courtbouillon.org/weasyprint/stable/first_steps.html#alpine-3-12
     py3-pip py3-pillow py3-cffi py3-brotli pango poppler-utils openldap \
-    # Core database packages
-    postgresql13-client && \
+    # Postgres client
+    postgresql13-client \
+    # MySQL / MariaDB client
+    mariadb-client mariadb-connector-c \
+    && \
     # fonts
     apk --update --upgrade --no-cache add fontconfig ttf-freefont font-noto terminus-font && fc-cache -f
 
@@ -96,7 +97,7 @@ FROM inventree_base as prebuild
 
 ENV PATH=/root/.local/bin:$PATH
 RUN ./install_build_packages.sh --no-cache --virtual .build-deps && \
-    pip install --user uv --no-cache-dir && pip install -r base_requirements.txt -r requirements.txt --no-cache && \
+    pip install --user -r base_requirements.txt -r requirements.txt --no-cache && \
     apk --purge del .build-deps
 
 # Frontend builder image: