feat: install juggler and eicrecon with spack

This makes more sense as part of the jug_dev step, since that's where large dependencies are installed with the full benefit of caching.

containers/jug/dev.Dockerfile

@@ -105,6 +105,8 @@ FROM spack as builder
 ## Setup our custom environment (secret mount for write-enabled mirror)
 COPY --from=spack-environment . /opt/spack-environment/
 ARG ENV=dev
+ARG JUGGLER_VERSION="main"
+ARG EICRECON_VERSION="main"
 ENV SPACK_ENV=/opt/spack-environment/${ENV}
 RUN --mount=type=cache,target=/ccache,id=${TARGETPLATFORM}              \
     --mount=type=cache,target=/var/cache/spack                          \
@@ -112,6 +114,8 @@ RUN --mount=type=cache,target=/ccache,id=${TARGETPLATFORM}              \
     source $SPACK_ROOT/share/spack/setup-env.sh                         \
  && export CCACHE_DIR=/ccache                                           \
  && spack env activate --dir ${SPACK_ENV}                               \
+ && spack add juggler@git.${JUGGLER_VERSION}                            \
+ && spack add eicrecon@git.${EICRECON_VERSION}                          \
  && make --jobs ${jobs} --keep-going --directory /opt/spack-environment \
     SPACK_ENV=${SPACK_ENV}                                              \
     BUILDCACHE_MIRROR="local eics3rw"                                   \