scripts/install-buildtools: Update to 4.0.28

Update to the 4.0.28 release of the 4.0 series for buildtools

(From OE-Core rev: 8e59118164d6468443db211d9ade058402f21add)

Signed-off-by: Aleksandar Nikolic <aleksandar.nikolic@zeiss.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

scripts/install-buildtools

@@ -57,8 +57,8 @@ logger = scriptutils.logger_create(PROGNAME, stream=sys.stdout)
 
 DEFAULT_INSTALL_DIR = os.path.join(os.path.split(scripts_path)[0],'buildtools')
 DEFAULT_BASE_URL = 'https://downloads.yoctoproject.org/releases/yocto'
-DEFAULT_RELEASE = 'yocto-4.0.27'
-DEFAULT_INSTALLER_VERSION = '4.0.27'
+DEFAULT_RELEASE = 'yocto-4.0.28'
+DEFAULT_INSTALLER_VERSION = '4.0.28'
 DEFAULT_BUILDDATE = '202110XX'
 
 # Python version sanity check