static: split cli, engine, and containerd packages

This splits the CLI, Engine, and containerd packages to allow downloading
the cli separate from the daemon, as well as (in future) allowing us to
do a containerd release without also requiring an engine release.

With this patch:

    make REF=v22.06.0-beta.0 VERSION=v22.06.0-beta.0 TARGETPLATFORM=linux/amd64 static

    static/build
    ├── bundles-ce-static-linux-x86_64.tar.gz
    └── linux
        └── amd64
            ├── containerd-1.6.4.tgz
            ├── docker-buildx-plugin-0.8.2.tgz
            ├── docker-cli-22.06.0-beta.0.tgz
            ├── docker-engine-22.06.0-beta.0.tgz
            ├── docker-compose-plugin-2.6.1.tgz
            ├── docker-rootless-extras-22.06.0-beta.0.tgz
            └── docker-scan-plugin-0.17.0.tgz

    2 directories, 8 files

    ls -lh static/build/linux/amd64/
    total 215208
    -rw-r--r--  1 sebastiaan  staff    31M Jun 29 00:21 containerd-1.6.4.tgz
    -rw-r--r--  1 sebastiaan  staff    14M Jun 29 00:21 docker-buildx-plugin-0.8.2.tgz
    -rw-r--r--  1 sebastiaan  staff   8.2M Jun 29 00:21 docker-cli-22.06.0-beta.0.tgz
    -rw-r--r--  1 sebastiaan  staff    19M Jun 29 00:21 docker-engine-22.06.0-beta.0.tgz
    -rw-r--r--  1 sebastiaan  staff   8.8M Jun 29 00:21 docker-compose-plugin-2.6.1.tgz
    -rw-r--r--  1 sebastiaan  staff    19M Jun 29 00:21 docker-rootless-extras-22.06.0-beta.0.tgz
    -rw-r--r--  1 sebastiaan  staff   4.4M Jun 29 00:21 docker-scan-plugin-0.17.0.tgz

Signed-off-by: CrazyMax <[email protected]>
Signed-off-by: Sebastiaan van Stijn <[email protected]>

Author: thaJeztah

static/Makefile

@@ -7,8 +7,8 @@ COMPOSE_DIR=$(realpath $(CURDIR)/../src/github.com/docker/compose)
 SCAN_DIR=$(realpath $(CURDIR)/../src/github.com/docker/scan-cli-plugin)
 
 STATIC_VERSION=$(shell ./gen-static-ver $(CLI_DIR) $(VERSION))
-HASH_CMD=docker run -v $(CURDIR):/sum -w /sum debian:jessie bash hash_files
-DIR_TO_HASH:=build/linux
+HASH_CMD=docker run -v $(CURDIR):/sum -w /sum alpine sh hash_files
+DIR_TO_HASH:=build
 
 export CLI_DIR
 export ENGINE_DIR