Promote Bloom 3.8 to release and Bloom 3.9 to beta
Promote Bloom 3.8 to release and Bloom 3.9 to beta

Change-Id: If49d85d5b67de2bca0b1606dee1c5c17894e14bc

sillsdev/ci-builder-scripts,sillsdev/ci-builder-scripts,sillsdev/ci-builder-scripts