chore(deps): update rust to nightly-2026-08-23

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
rust (source, changelog)	toolchain	patch	nightly-2026-08-02 → nightly-2026-08-23

---

Configuration

📅 Schedule: (in timezone Asia/Shanghai)

• Branch creation
  • "before 10am on monday"
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[github-actions]

fspy benchmark

linux

dynamic/launch             change  +0.34%  [ -8.39% .. +14.45%]  overhead  +276.89%
dynamic/access             change  -0.31%  [ -4.63% ..  +1.72%]  overhead    +7.62%
dynamic/access-relative    change  +1.03%  [ -2.56% ..  +6.82%]  overhead   +55.07%
dynamic/access-contended   change  +0.29%  [-18.76% .. +12.88%]  overhead    +8.14%
static/launch              change  +0.05%  [-10.01% .. +12.42%]  overhead  +644.23%
static/access              change  +0.28%  [ -7.93% ..  +9.42%]  overhead  +705.18%
static/access-relative     change  +0.68%  [ -4.64% ..  +5.51%]  overhead +1012.41%
static/access-contended    change  -0.19%  [ -2.86% ..  +1.61%]  overhead +2042.56%

macos

dynamic/launch             change  +0.36%  [ -5.84% ..  +6.33%]  overhead  +245.54%
dynamic/access             change  +0.00%  [ -4.43% ..  +4.76%]  overhead    +5.55%
dynamic/access-relative    change  +0.67%  [ -9.25% .. +21.00%]  overhead  +254.95%
dynamic/access-contended   change  -2.04%  [-11.21% .. +766.29%]  overhead    +3.44%

windows

dynamic/launch             change  +1.24%  [ -6.11% ..  +8.78%]  overhead   +27.95%
dynamic/access             change  -0.35%  [ -9.70% ..  +7.58%]  overhead    +2.01%
dynamic/access-relative    change  +0.70%  [-12.02% .. +23.20%]  overhead    +2.33%
dynamic/access-contended   change  -1.61%  [ -5.63% ..  +2.80%]  overhead    +3.88%