message: Set synchronization threshold to 1 in bootstrap tests
  Otherwise mempool will be started immediately, adding unnecessary overhead.
diff: @@ -5632,7 +5632,7 @@ steps:
  --network ithacanet --peers $${OCTEZ_IP}:9732
  --config-file ./light_node/etc/tezedge/tezedge_drone.config
  --identity-file ./light_node/etc/drone/identities/identity_2.json --rpc-port 8732
  - --peer-thresh-low 1 --peer-thresh-high 1 --synchronization-thresh=0
  + --peer-thresh-low 1 --peer-thresh-high 1 --synchronization-thresh=1
  --init-sapling-spend-params-file ./drone-cache/build_files/ffi/sapling-spend.params
  --init-sapling-output-params-file ./drone-cache/build_files/ffi/sapling-output.params &
  # this command waits the node to be on level higher than 0
  @@ -5675,7 +5675,7 @@ steps:
  --network ithacanet --peers $${OCTEZ_IP}:9732
  --config-file ./drone-cache-old/tezedge_drone.config
  --identity-file ./light_node/etc/drone/identities/identity_2.json --rpc-port 8732
  - --peer-thresh-low 1 --peer-thresh-high 1 --synchronization-thresh=0
  + --peer-thresh-low 1 --peer-thresh-high 1 --synchronization-thresh=1
  --init-sapling-spend-params-file ./drone-cache/build_files/ffi/sapling-spend.params
  --init-sapling-output-params-file ./drone-cache/build_files/ffi/sapling-output.params &
  # this command waits the node to be on level higher than 0
  @@ -6347,7 +6347,7 @@ steps:
  --config-file ./light_node/etc/tezedge/tezedge_drone.config
  --identity-file ./light_node/etc/drone/identities/identity_2.json --rpc-port 18732
  --websocket-address 0.0.0.0:4927
  - --peer-thresh-low 1 --peer-thresh-high 1 --synchronization-thresh=0
  + --peer-thresh-low 1 --peer-thresh-high 1 --synchronization-thresh=1
  --init-sapling-spend-params-file ./tezos/sys/lib_tezos/artifacts/sapling-spend.params
  --init-sapling-output-params-file ./tezos/sys/lib_tezos/artifacts/sapling-output.params &
  echo $! > /var/run/tezedge.pid
  @@ -6396,7 +6396,7 @@ steps:
  --config-file ./light_node/etc/tezedge/tezedge_drone.config
  --identity-file ./light_node/etc/drone/identities/identity_2.json --rpc-port 18732
  --websocket-address 0.0.0.0:4927
  - --peer-thresh-low 1 --peer-thresh-high 1 --synchronization-thresh=0
  + --peer-thresh-low 1 --peer-thresh-high 1 --synchronization-thresh=1
  --init-sapling-spend-params-file ./tezos/sys/lib_tezos/artifacts/sapling-spend.params
  --init-sapling-output-params-file ./tezos/sys/lib_tezos/artifacts/sapling-output.params &
  echo $! > /var/run/tezedge.pid
  