Drop cargo-count in make stats, replace it by tokei

[eval-exec]

What problem does this PR solve?

cargo-count is unmaintained, it can't be installed. So I want to replace it by tokei, and count unsafe code by rg:

$ make stats
make stats
/home/exec/.cargo/bin/tokei
===============================================================================
 Language            Files        Lines         Code     Comments       Blanks
===============================================================================
 GNU Style Assembly      3           72           57           10            5
 BASH                    3          169          113           32           24
 Batch                   3           15           15            0            0
 C                      50         1915         1569           99          247
 Dockerfile              1           31           23            0            8
 JSON                    1          101          101            0            0
 Makefile                3          448          360           17           71
 PowerShell              1          169          145            0           24
 Python                  2          921          773           12          136
 Ruby                    1           28           20            3            5
 Shell                  12          746          653           20           73
 TOML                   85         7033         5729          312          992
 YAML                    1            8            8            0            0
-------------------------------------------------------------------------------
 Markdown               16        11106            0         7664         3442
 |- BASH                 3           38           37            0            1
 |- Shell                2            8            8            0            0
 (Total)                          11152           45         7664         3443
-------------------------------------------------------------------------------
 Rust                  712       152428       136158         2984        13286
 |- Markdown           308        11299         2485         7224         1590
 (Total)                         163727       138643        10208        14876
===============================================================================
 Total                 894       175190       145724        11153        18313
===============================================================================
# count lines of unsafe code
# ===============================================================================
tx-pool/src/component/recent_reject.rs                                1
Makefile                                                              2
db/src/snapshot.rs                                                    6
db/src/db.rs                                                          1
sync/src/relayer/tests/helper.rs                                      2
util/jsonrpc-types/src/fixed_bytes.rs                                 1
util/jsonrpc-types/src/bytes.rs                                       1
util/jsonrpc-types/src/alert.rs                                       4
util/light-client-protocol-server/src/tests/utils/network_context.rs  2
util/fixed-hash/core/src/serde.rs                                     1
util/jsonrpc-types/src/proposal_short_id.rs                           1
util/stop-handler/src/tests.rs                                        1
util/crypto/src/secp/privkey.rs                                       1
util/gen-types/src/conversion/primitive.rs                            2
util/memory-tracker/src/process.rs                                    2
util/memory-tracker/src/jemalloc.rs                                   1

Related changes

• Remove cargo-count in make stats, replace it by tokei

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.