Halt a node if it errors when applying a block from the sequencer (#1438

)

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## Overview
Closes: #1437 

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

- **Refactor**
- Improved error handling in the block synchronization process to ensure
node stability.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

block/manager.go

@@ -406,7 +406,11 @@ func (m *Manager) trySyncNextBlock(ctx context.Context, daHeight uint64) error {
 		}
 		newState, responses, err := m.applyBlock(ctx, b)
 		if err != nil {
-			return fmt.Errorf("failed to ApplyBlock: %w", err)
+			if ctx.Err() != nil {
+				return err
+			}
+			// if call to applyBlock fails, we halt the node, see https://github.com/cometbft/cometbft/pull/496
+			panic(fmt.Errorf("failed to ApplyBlock: %w", err))
 		}
 		err = m.store.SaveBlock(b, &b.SignedHeader.Commit)
 		if err != nil {