Use permit for flashblocks number contract

(cherry picked from commit 42ad1bb)

Author: avalonche

l2/_op_rbuilder/mkosi.extra/etc/vault-agent/gomplate/op-rbuilder.service.ctmpl

@@ -59,6 +59,7 @@ ExecStart=/usr/bin/op-rbuilder node \
     --flashblocks.port '11111' \
     ((- if $service.feat_flashblocks_number_contract_address ))
     --flashblocks.number-contract-address '(( $service.feat_flashblocks_number_contract_address ))' \
+    --flashblocks.number-contract-use-permit \
     ((- end ))
     ((- end ))(( end ))
     ((- if $service.feat_flashtestations ))(( if $service.feat_flashtestations | parseBool ))