fix(deps): update rust crate spin to 0.12.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
spin	dependencies	minor	0.9.8 → 0.12.0

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Release Notes

zesterer/spin (spin)

v0.12.1

Fixed

• Unsoundness in RwLock's try_upgrade path for the lock_api interface has been
  fixed. Note that this unsoundness only affects you if all of the following apply:

  • You use RwLock via the lock_api interface specifically
  • You call upgradable_read to create an upgradeable lock guard
  • You call try_upgrade on the upgradeable lock guard

• LazyLock's Sync implementation is now less restrictive

v0.12.0

Changed

• Moved to Codeberg

Fixed

• Unsoundness in FairMutex caused by an undue extension of a reference lifetime
  outside of a critical section. Note that we do not consider this CVE-worthy since
  there's no clear path to exploiting this and there's no clear reason for the compiler
  to actually generate code that falls afoul of the issue. If you have found an example
  of this issue leading to unexpected behaviour in practice, please open an issue.

v0.11.0

Added

• lock_api mapped read/write guard for RwLock
• Once::init_from_ref
• rustc-dep-of-std feature, allowing spin to be used as a standard library dependency

Changed

• MSRV is now 1.71
• Lazy is now LazyLock

Fixed

• lock_api feature name for RawRwLockUpgradeDowngrade

v0.10.0

Added

• Mutex::try_lock_weak
• RwLock::try_write_weak
• RwLock::try_upgrade_weak

Changed

• Updated MSRV to 1.60
• Use dep: syntax in Cargo.toml
• portable_atomic feature has been renamed to portable-atomic, for consistency.

Fixed

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