Merge bitcoin/bitcoin#30501: lint: Add missing docker.io prefix to ci/lint_imagefile

fa7bee1 lint: Use git clone --depth=1 (MarcoFalke)
fadb7c2 lint: Add missing docker.io prefix to ci/lint_imagefile (MarcoFalke)

Pull request description:

  Currently, the `ci/lint_imagefile` may pick the wrong (non-native) architecture due to the missing prefix.

  For example, assuming the user has previously pulled an s390x image:

  ```
  $ podman run --rm 'docker.io/s390x/debian:bookworm' dpkg --print-architecture
  exec /usr/bin/dpkg: exec format error
  ```

  Now, `debian:bookworm` will refer to the same image:

  ```
  $ podman run --rm 'debian:bookworm' dpkg --print-architecture
  exec /usr/bin/dpkg: exec format error
  ```

  However, `docker.io/debian:bookworm` works fine:

  ```
   $ podman run --rm 'docker.io/debian:bookworm' dpkg --print-architecture
  arm64
  ```

  (Also includes a nit-fix from bitcoin/bitcoin#30499 (comment))

ACKs for top commit:
  paplorinc:
    utACK fa7bee1
  hebasto:
    ACK fa7bee1.

Tree-SHA512: 4b6d562c14c67bef984ad25f6a3a1ef7f1059dc2859c603c45083b36bcacafa3248fc74176e2e4626fdc39507e9353f458ddbc4077f805c03e970df46af02224

Author: fanquake

ci/lint/04_install.sh

@@ -21,7 +21,7 @@ ${CI_RETRY_EXE} apt-get install -y automake pkg-config libtool curl xz-utils git
 PYTHON_PATH="/python_build"
 if [ ! -d "${PYTHON_PATH}/bin" ]; then
   (
-    ${CI_RETRY_EXE} git clone https://github.com/pyenv/pyenv.git
+    ${CI_RETRY_EXE} git clone --depth=1 https://github.com/pyenv/pyenv.git
     cd pyenv/plugins/python-build || exit 1
     ./install.sh
   )

ci/lint_imagefile

@@ -4,7 +4,7 @@
 
 # See test/lint/README.md for usage.
 
-FROM debian:bookworm
+FROM docker.io/debian:bookworm
 
 ENV DEBIAN_FRONTEND=noninteractive
 ENV LC_ALL=C.UTF-8