Set DEBIAN_FRONTEND to be noninteractive for containerd installing.

This was causing annoying timeout issues on BuildKite where the cgroupsv2
agents that are on ubuntu-2110 image to get stuck indefinitely.

Also rollback the experimental changes in pre-command hook to simplify scripts
and make things consistent.

PiperOrigin-RevId: 432671125

.buildkite/hooks/pre-command

@@ -4,13 +4,7 @@ function install_pkgs() {
   export DEBIAN_FRONTEND=noninteractive
   while true; do
     if sudo -E apt-get update && \
-       sudo -E apt-get install -y \
-                       -o Dpkg::Options::=--force-confold \
-                       -o Dpkg::Options::=--force-confdef \
-                       --allow-downgrades \
-                       --allow-remove-essential \
-                       --allow-change-held-packages \
-                       "$@"; then
+       sudo -E apt-get install -y "$@"; then
       break
     fi
   done

tools/install_containerd.sh

@@ -62,6 +62,7 @@ fi
 readonly BTRFS_DEV
 
 # Install dependencies for the crictl tests.
+export DEBIAN_FRONTEND=noninteractive
 while true; do
   if (apt-get update && apt-get install -y \
       "${BTRFS_DEV}" \