After the flowzone update to use zstd as compression algorithm for sources
there is an error on macos-11 as tar does not support it.
Change-type: patch
Signed-off-by: Alex Gonzalez <alexg@balena.io>
The macos-11 runners apparently do not support zst compression format as
added in flowzone 4.7.2. While support is rolled out, we can keep
the flowzone branch to the previous working version.
Change-type: patch
