fix(deps): update rust crate pwm-pca9685 to v1

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This PR contains the following updates:

Package	Type	Update	Change
pwm-pca9685	dependencies	major	0.3.1 -> 1.0.0

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Release Notes

eldruin/pwm-pca9685-rs (pwm-pca9685)

v1.0.0

Compare Source

Added

• Added Display, Error and common trait implementations for Error<E>.
• Added common trait implementations for types.
• Async support based on embedded-hal-async 1.0 behind async feature flag.
• Added set_all_channels().

Changed

• [breaking-change] Removed Default implementation for Pca9685 struct.
• Raised MSRV to 1.75.0.
• [breaking-change] Updated embedded-hal dependency to 1.0.

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: blink/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path blink/Cargo.toml --package pwm-pca9685@0.3.1 --precise 1.0.0
error: failed to acquire package cache lock

Caused by:
  failed to open: /home/ubuntu/.cargo/.package-cache

Caused by:
  failed to create directory `/home/ubuntu/.cargo`

Caused by:
  File exists (os error 17)