Update Rust crate sqlx to v0.8.6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
sqlx	dependencies	patch	0.8.5 -> 0.8.6

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Release Notes

launchbadge/sqlx (sqlx)

v0.8.6

Compare Source

9 pull requests were merged this release cycle.

Added

• [#​3849]: Add color and wrapping to cli help text [[@​joshka]]

Changed

• [#​3830]: build: drop unused tempfile dependency [[@​paolobarbolini]]
• [#​3845]: chore: clean up no longer used imports [[@​tisonkun]]
• [#​3863]: Use unnamed statement in pg when not persistent [[@​ThomWright]]
• [#​3866]: chore(doc): clarify compile-time verification and case conversion behavior [[@​duhby]]

Fixed

• [#​3840]: Fix docs.rs build of sqlx-sqlite [[@​gferon]]
• [#​3848]: fix(macros): don't mutate environment variables [[@​joeydewaal]]
• [#​3855]: fix attrubute typo in doc [[@​kujeger]]
• [#​3856]: fix(macros): slightly improve unsupported type error message [[@​dyc3]]

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