Modify the method Relayer::accept_block to return StatusCode::BlockIsInvalid when shared.insert_new_block() produces an error.

[eval-exec]

What problem does this PR solve?

Let Relayer::accept_block return Status

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code ci-runs-only: [ quick_checks,linters ]

Side effects

• None

Release note

None: Exclude this PR from the release note.

[eval-exec]

TODO:

• Fix relayer::tests::compact_block_process::test_accept_block
• Fix relayer::tests::compact_block_process::test_accept_not_a_better_block

        FAIL [   0.631s] ckb-sync relayer::tests::compact_block_process::test_accept_block

--- STDOUT:              ckb-sync relayer::tests::compact_block_process::test_accept_block ---

running 1 test
test relayer::tests::compact_block_process::test_accept_block ... FAILED

failures:

failures:
    relayer::tests::compact_block_process::test_accept_block

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 69 filtered out; finished in 0.61s


--- STDERR:              ckb-sync relayer::tests::compact_block_process::test_accept_block ---
thread 'relayer::tests::compact_block_process::test_accept_block' panicked at 'assertion failed: `(left == right)`
  left: `Status { code: BlockIsInvalid, context: Some("Byte32(0x7128196a2d588fa711b44cf2076ca26e1ee9be06060e67c5b260e5785a47615e), error: Block(Cellbase(InvalidQuantity))") }`,
 right: `Status { code: OK, context: None }`', sync/src/relayer/tests/compact_block_process.rs:392:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

        FAIL [   0.661s] ckb-sync relayer::tests::compact_block_process::test_accept_not_a_better_block

--- STDOUT:              ckb-sync relayer::tests::compact_block_process::test_accept_not_a_better_block ---

running 1 test
test relayer::tests::compact_block_process::test_accept_not_a_better_block ... FAILED

failures:

failures:
    relayer::tests::compact_block_process::test_accept_not_a_better_block

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 69 filtered out; finished in 0.64s


--- STDERR:              ckb-sync relayer::tests::compact_block_process::test_accept_not_a_better_block ---
thread 'relayer::tests::compact_block_process::test_accept_not_a_better_block' panicked at 'assertion failed: `(left == right)`
  left: `Status { code: BlockIsInvalid, context: Some("Byte32(0xd0176ece8f840c998f24aacdfcdccd29dca4a9a65d1f7cc860c09415853bbb7e), error: Block(Cellbase(InvalidQuantity))") }`,
 right: `Status { code: OK, context: None }`', sync/src/relayer/tests/compact_block_process.rs:185:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[eval-exec]

The issue with the unit test test_accept_not_a_better_block has been resolved. However, the unit test test_accept_block remains challenging to fix...