sql: retry connect failures while queries are waiting - #32028

Running Vale across on the following files affected by this PR:

- runtime/sql.mdx

Attempting to initialize Vale linter...
No customer vale configuration detected. Using Mintlify's default configuration.
Attempting to run Vale spellcheck...
Vale spellcheck completed successfully.

docs/runtime/sql.mdx:
	- 6:33        Did you really mean 'performant'?
	- 137:43      Did you really mean 'mysql_native_password'?
	- 140:11      Did you really mean 'pipelining'?
	- 576:12      Did you really mean 'Preconnection'?
	- 578:9       Did you really mean 'preconnect'?
	- 724:65      Did you really mean 'savepoints'?
	- 765:12      Did you really mean 'Pragmas'?
	- 836:5       Did you really mean 'Savepoints'?
	- 838:1       Did you really mean 'Savepoints'?
	- 906:62      Did you really mean 'hostname'?
	- 906:95      Did you really mean 'untrusted'?
	- 1002:9      Did you really mean 'PGBouncer'?
	- 1002:53     Did you really mean 'PGBouncer'?
	- 1031:23     Did you really mean 'errno'?
	- 1047:158    Did you really mean 'backoff'?
	- 1122:55     Did you really mean 'readonly'?
	- 1191:14     Did you really mean 'preloading'?
	- 1353:20     Did you really mean 'charset'?


Found 18 suggested changes across 1 files in 417.56ms