Merged PRs

dolt

6071: replace encoding/json with goccy/go-json for improved unmarshalling
6060: Test CI with automatic server connection for CLI commands.
This adds additional CI workflows that start a Dolt SQL server before running the bats tests. The dolt commands in the tests should connect to the running server instead of running their own engine.
The file local-remote.bats contains a list of bats files that are not yet confirmed to work against a remote server because they contain dolt commands that haven't been migrated yet. This is a burndown list that will shrink as we migrate more commands.

1806: improve conversion from JsonDocument to string
1803: Added "utf8mb3_czech_ci" collation, fixed missing collation check for enum/set
Fixes dolthub/go-mysql-server#1801
Adds the requested collation, and fixes the panic. The panic came from an oversight when checking for a collation's implementation. enum and set use the collation during type creation, which occurs before we've verified the collation's implementation. The other string types do not use the collation during type creation, so we return the appropriate error as a result.

6076: Dolt backup restore drops user root, prevents access to other databases.
5936: Add dolt table import --append
5662: JSON operator ->> not supported
1801: Creating an enum column with collation utf8_czech_ci causes panic

Read Tests	MySQL	Dolt	Multiple
covering_index_scan	1.89	2.71	1.4
groupby_scan	12.08	16.71	1.4
index_join	1.16	4.25	3.7
index_join_scan	1.1	2.11	1.9
index_scan	30.26	54.83	1.8
oltp_point_select	0.14	0.47	3.4
oltp_read_only	2.71	7.98	2.9
select_random_points	0.29	0.77	2.7
select_random_ranges	0.34	1.08	3.2
table_scan	30.26	54.83	1.8
types_table_scan	68.05	158.63	2.3
reads_mean_multiplier			2.4

Write Tests	MySQL	Dolt	Multiple
bulk_insert	0.001	0.001	1.0
oltp_delete_insert	5.0	6.09	1.2
oltp_insert	2.43	2.97	1.2
oltp_read_write	6.32	15.55	2.5
oltp_update_index	2.52	3.07	1.2
oltp_update_non_index	2.57	3.02	1.2
oltp_write_only	3.55	7.7	2.2
types_delete_insert	4.82	6.79	1.4
writes_mean_multiplier			1.5

Overall Mean Multiple	2.0