[build] Creates Linux aarch64 archive (#69165)

- Updates Linux Chromium builds to accept architecture argument (defaults to x64) for arm64 support.
  - Example: `python ~/chromium/build_chromium/build.py 312d84c8ce62810976feda0d3457108a6dfff9e6 arm64`
- Updates all Chromium builds to include architecture in filename. 
  - `chromium-312d84c-linux_arm64.zip` _(new)_
  - `chromium-312d84c-linux.zip` > `chromium-312d84c-linux_x64.zip`
- Moves Chromium install from data directory to `x-pack/plugins/reporting/chromium`
- Moves Chromium download cache from `x-pack/plugins/reporting/.chromium` to `.chromium`
- Installs Chromium during build (closes #53664)
- Updates build to be architecture aware (x64 and aarch64)
- Removed Chromium debug logs, they were not helpful and can not be written inside the Kibana root. If we were to keep them, we would need to write to `logging.dist`.

Signed-off-by: Tyler Smalley <tyler.smalley@elastic.co>

x-pack/build_chromium/init.py

@@ -1,4 +1,4 @@
-import os, platform
+import os, platform, sys
 from build_util import runcmd, mkdir, md5_file, root_dir, configure_environment
 
 # This is a cross-platform initialization script which should only be run
@@ -29,4 +29,10 @@ runcmd('fetch chromium')
 # Build Linux deps
 if platform.system() == 'Linux':
   os.chdir('src')
+
+  if len(sys.argv) >= 2:
+    sysroot_cmd = 'build/linux/sysroot_scripts/install-sysroot.py --arch=' + sys.argv[1]
+    print('Running `' + sysroot_cmd + '`')
+    runcmd(sysroot_cmd)
+
   runcmd('build/install-build-deps.sh')