Make Blockstore populate TransactionStatusIndex for backwards compat

Versions v1.16 and v1.17 expect these entries to be populated; there is
code that calls .unwrap() on the Option returned by .get(). A change
that is currently in master (and should land in v1.18) will make it such
that these entries are no longer read.

Until the TransactionStatusIndexMeta's are no longer read, they should
continue to be populated to allow for software downgrade scenarios. So,
add back code that #33649 overzealously removed to populate these
entries.

ledger/src/blockstore.rs

@@ -2109,6 +2109,17 @@ impl Blockstore {
         if !self.is_primary_access() {
             return Ok(());
         }
+
+        // Initialize TransactionStatusIndexMeta if they are not present already
+        if self.transaction_status_index_cf.get(0)?.is_none() {
+            self.transaction_status_index_cf
+                .put(0, &TransactionStatusIndexMeta::default())?;
+        }
+        if self.transaction_status_index_cf.get(1)?.is_none() {
+            self.transaction_status_index_cf
+                .put(1, &TransactionStatusIndexMeta::default())?;
+        }
+
         // If present, delete dummy entries inserted by old software
         // https://github.com/solana-labs/solana/blob/bc2b372/ledger/src/blockstore.rs#L2130-L2137
         let transaction_status_dummy_key = cf::TransactionStatus::as_index(2);