refactor(bb/Dockerfile): remove specific deps preparation step

feat(bb.edn): add prismatic/plumbing dependency to bb.edn

The specific dependency preparation step in the Dockerfile is removed to
simplify the build process. Instead, the dependency is now declared in
the bb.edn file, ensuring that all required dependencies are managed in
a single, centralized configuration file. This change improves the
maintainability of dependency management and streamlines the Docker build
process.

template/bb/Dockerfile

@@ -17,13 +17,12 @@ RUN addgroup --system app && adduser --system --ingroup app app
 USER app
 WORKDIR $HOME
 
-RUN bb prepare -Sdeps '{:deps {prismatic/plumbing {:mvn/version "0.6.0"}}}'
-
 COPY --chown=app:app index.clj bb.edn lib merge_config.clj ./
 
+RUN bb prepare
+
 COPY --chown=app:app function/bb.edn* function/bb.edn
 RUN bb merge-config --src "function/bb.edn" --out "ship.edn" && \
-    mkdir ~/.m2 && \
     bb --config ship.edn prepare && \
     bb --config ship.edn print-deps && \
     cp -r .m2 .m2-ship

template/bb/bb.edn

@@ -1,4 +1,5 @@
 {:paths ["." "function"]
+ :deps {prismatic/plumbing {:mvn/version "0.6.0"}}
  :tasks {run-function index/-main
          test test.run-tests/-main
          merge-config merge-config/-main}}