Bump metrics from 0.21.1 to 0.22.3

[dependabot[bot]]

Bumps metrics from 0.21.1 to 0.22.3.

Commits

• a143ef6 chore: Release
• 8f79f70 Add more implementations of IntoF64 for standard numerical types.
• dc2620b chore: Release
• 4b9f72b chore: Release
• 016f00b chore: Release
• 1bf58a0 missed a spot
• 102b7d4 update release.toml
• cc174d0 Update base64 requirement from 0.21.0 to 0.22.0 (#458)
• 3e886cf update changelogs, make ignored test work, fix docs.rs cfg flag rendering
• 5603f6d link directly to rust-telemetry-workshop repo
• Additional commits viewable in compare view

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