fix(validation): replace schema mismatch panics with errors

[slvrtrn]

Summary

All schema validators now emit clickhouse::error::Error::SchemaMismatch instead of a panic in case of validation errors.

Closes #294. Duplicates: #335, #341.

Checklist

• Unit and integration tests covering the common scenarios were added
• A human-readable description of the changes was provided so that we can include it in CHANGELOG later
• Fix the last panic in Drop

[slvrtrn]

➜  clickhouse-rs git:(rbwnat-replace-panics-with-err) cargo bench --bench mocked_select -- --baseline main
    Finished `bench` profile [optimized + debuginfo] target(s) in 0.06s
     Running benches/mocked_select.rs (target/release/deps/mocked_select-1f28991e1973b432)
Gnuplot not found, using plotters backend
rows/validation=off/uncompressed
                        time:   [8.4485 ns 8.4818 ns 8.5126 ns]
                        thrpt:  [2.6257 GiB/s 2.6353 GiB/s 2.6456 GiB/s]
                 change:
                        time:   [+1.8405% +3.3242% +4.6321%] (p = 0.00 < 0.05)
                        thrpt:  [−4.4270% −3.2173% −1.8073%]
                        Performance has regressed.
Found 6 outliers among 100 measurements (6.00%)
  1 (1.00%) low mild
  3 (3.00%) high mild
  2 (2.00%) high severe
rows/validation=off/lz4 time:   [9.7708 ns 9.8126 ns 9.8576 ns]
                        thrpt:  [2.2675 GiB/s 2.2779 GiB/s 2.2876 GiB/s]
                 change:
                        time:   [−0.6857% +1.1440% +2.7511%] (p = 0.21 > 0.05)
                        thrpt:  [−2.6775% −1.1310% +0.6904%]
                        No change in performance detected.
Found 5 outliers among 100 measurements (5.00%)
  2 (2.00%) high mild
  3 (3.00%) high severe
rows/validation=on/uncompressed
                        time:   [16.104 ns 16.135 ns 16.172 ns]
                        thrpt:  [1.3821 GiB/s 1.3853 GiB/s 1.3880 GiB/s]
                 change:
                        time:   [+6.2932% +7.9043% +9.3253%] (p = 0.00 < 0.05)
                        thrpt:  [−8.5298% −7.3253% −5.9206%]
                        Performance has regressed.
Found 16 outliers among 100 measurements (16.00%)
  1 (1.00%) low mild
  4 (4.00%) high mild
  11 (11.00%) high severe
rows/validation=on/lz4  time:   [17.297 ns 17.359 ns 17.428 ns]
                        thrpt:  [1.2825 GiB/s 1.2876 GiB/s 1.2922 GiB/s]
                 change:
                        time:   [+4.5881% +7.2624% +9.7421%] (p = 0.00 < 0.05)
                        thrpt:  [−8.8773% −6.7707% −4.3868%]
                        Performance has regressed.
Found 5 outliers among 100 measurements (5.00%)
  1 (1.00%) high mild
  4 (4.00%) high severe

mbytes/uncompressed     time:   [69.668 µs 71.747 µs 73.604 µs]
                        thrpt:  [13.268 GiB/s 13.611 GiB/s 14.017 GiB/s]
                 change:
                        time:   [+0.6238% +5.2174% +9.6674%] (p = 0.02 < 0.05)
                        thrpt:  [−8.8152% −4.9587% −0.6199%]
                        Change within noise threshold.
mbytes/lz4              time:   [101.21 µs 101.70 µs 102.25 µs]
                        thrpt:  [9.5505 GiB/s 9.6027 GiB/s 9.6485 GiB/s]
                 change:
                        time:   [−1.8262% +0.4842% +2.5740%] (p = 0.71 > 0.05)
                        thrpt:  [−2.5095% −0.4819% +1.8601%]
                        No change in performance detected.
Found 8 outliers among 100 measurements (8.00%)
  4 (4.00%) high mild
  4 (4.00%) high severe