Remove references to branch wildcards in Dolt CI YAML in AGENT.md

[timsehn]

Dolt CI does not support wildcards in branch specs.

[coffeegoddd]

@timsehn DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
40629bf	ok	5937457

version	total_tests
40629bf	5937457

correctness_percentage
100.0

[github-actions]

@coffeegoddd DOLT

test_name	detail	row_cnt	sorted	mysql_time	sql_mult	cli_mult
batching	LOAD DATA	10000	1	0.06	1.5
batching	batch sql	10000	1	0.09	1.44
batching	by line sql	10000	1	0.1	1.3
blob	1 blob	200000	1	0.91	4	4.59
blob	2 blobs	200000	1	0.86	4.59	5.01
blob	no blob	200000	1	0.9	2.67	3.04
col type	datetime	200000	1	0.8	2.68	3.09
col type	varchar	200000	1	0.72	3.44	3.85
config width	2 cols	200000	1	0.82	2.61	3.06
config width	32 cols	200000	1	1.92	2.51	2.83
config width	8 cols	200000	1	1	2.7	3.02
pk type	float	200000	1	2.19	1.02	1.35
pk type	int	200000	1	0.83	2.66	3.23
pk type	varchar	200000	1	1.47	1.88	2.05
row count	1.6mm	1600000	1	5.74	3.16	3.3
row count	400k	400000	1	1.52	2.91	3.16
row count	800k	800000	1	2.96	3.01	3.2
secondary index	four index	200000	1	3.69	1.45	1.41
secondary index	no secondary	200000	1	0.9	2.68	3.02
secondary index	one index	200000	1	1.15	2.63	2.82
secondary index	two index	200000	1	2.08	1.81	1.87
sorting	shuffled 1mm	1000000	0	5.1	3	2.86
sorting	sorted 1mm	1000000	1	5.08	2.99	2.99

[github-actions]

@coffeegoddd DOLT

name	detail	mean_mult
dolt_blame_basic	system table	1.17
dolt_blame_commit_filter	system table	2.82
dolt_commit_ancestors_commit_filter	system table	0.66
dolt_commits_commit_filter	system table	1.15
dolt_diff_log_join_from_commit	system table	2.75
dolt_diff_log_join_to_commit	system table	2.69
dolt_diff_table_from_commit_filter	system table	1.19
dolt_diff_table_to_commit_filter	system table	1.19
dolt_diffs_commit_filter	system table	1.03
dolt_history_commit_filter	system table	1.48
dolt_log_commit_filter	system table	1.16

[github-actions]

@coffeegoddd DOLT

name	add_cnt	delete_cnt	update_cnt	latency
adds_only	60000	0	0	1.1
adds_updates_deletes	60000	60000	60000	4.5
deletes_only	0	60000	0	2.37
updates_only	0	0	60000	3