pre-commit: Use the toolbx image as a base.

Already has the different Debian sources and more of the expected
utilities.

images/pre-commit/Dockerfile

-FROM buildpack-deps:bookworm
-COPY --chown=root:root sources.d/* /etc/apt/sources.list.d/
+# hadolint ignore=DL3007
+FROM registry.shore.co.il/toolbx:latest
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 # hadolint ignore=DL3008,DL3013
-RUN curl -fsSL https://apt.releases.hashicorp.com/gpg | \
-    gpg --no-default-keyring --import --batch --keyring /usr/share/keyrings/hashicorp.gpg && \
-    apt-get update && \
+RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
         docker.io \
         python3-dev \

images/pre-commit/sources.d/hashicorp.sources

-Types: deb
-URIs: https://apt.releases.hashicorp.com
-Suites: buster
-Components: main
-Signed-By: /usr/share/keyrings/hashicorp.gpg