ci: filter both 14 and 64 disks in CI

github ci runner is allocating both 14 and 64 Gb disks to the setup.
CI currently hard codes the lsblk with a 14G filter.
This PR updates the filter to use either 14G or 64G disks.

Signed-off-by: subhamkrai <[email protected]>

tests/github-action-helper.sh

@@ -6,7 +6,7 @@ set -xeEo pipefail
 # VARIABLES #
 #############
 : "${FUNCTION:=${1}}"
-: "${BLOCK:=$(sudo lsblk --paths | awk '/14G/ {print $1}' | head -1)}"
+: "${BLOCK:=$(sudo lsblk --paths | awk '/14G/ || /64G/ {print $1}' | head -1)}"
 
 # source https://krew.sigs.k8s.io/docs/user-guide/setup/install/
 install_krew() {