[no-release-notes] Override IsValidFloat function in gms

[angelamayxie]

Accompanying PR dolthub/go-mysql-server#3268

[github-actions]

	Main	PR
covering_index_scan_postgres	338.04/s	341.71/s	+1.0%
index_join_postgres	150.93/s	152.10/s	+0.7%
index_join_scan_postgres	186.05/s	189.38/s	+1.7%
index_scan_postgres	11.72/s	11.48/s	-2.1%
oltp_point_select	2431.73/s	2417.74/s	-0.6%
oltp_read_only	1776.15/s	1774.89/s	-0.1%
select_random_points	113.67/s	115.30/s	+1.4%
select_random_ranges	130.45/s	131.52/s	+0.8%
table_scan_postgres	11.02/s	11.06/s	+0.3%
types_table_scan_postgres	5.05/s	5.09/s	+0.7%

[github-actions]

	Main	PR
Total	42090	42090
Successful	17223	17223
Failures	24867	24867
Partial Successes1	5592	5593

	Main	PR
Successful	40.9195%	40.9195%
Failures	59.0805%	59.0805%

Footnotes

1. These are tests that we're marking as Successful, however they do not match the expected output in some way. This is due to small differences, such as different wording on the error messages, or the column names being incorrect while the data itself is correct. ↩

[zachmu]

LGTM