chore: Add Hiero's Consensus Specifications to the cron

Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>

Author: jwagantall

cron/internal/data/projects.csv

@@ -610116,6 +610116,7 @@ github.com/hiero-ledger/hiero,
 github.com/hiero-ledger/hiero-block-node,
 github.com/hiero-ledger/hiero-cli,
 github.com/hiero-ledger/hiero-consensus-node,
+github.com/hiero-ledger/hiero-consensus-specifications,
 github.com/hiero-ledger/hiero-did-sdk-js,
 github.com/hiero-ledger/hiero-did-sdk-python,
 github.com/hiero-ledger/hiero-docs,