Bump semver from 1.0.12 to 1.0.16

[dependabot[bot]]

Bumps semver from 1.0.12 to 1.0.16.

Release notes

Sourced from semver's releases.

1.0.16

• Opt out of -Zrustdoc-scrape-examples on docs.rs for now

1.0.15

• Documentation improvements

1.0.14

• Fix segfault on OOM to instead deterministically abort with message (#290)

1.0.13

• Add categories and keywords to crates.io metadata

Commits

• dda4b83 Release 1.0.16
• aa2c527 Merge pull request #295 from dtolnay/rustdocworkaround
• ef3c81e Remove workaround for rustdoc displaying private fields
• e3439b9 Opt out -Zrustdoc-scrape-examples on docs.rs
• 41f59f3 Release 1.0.15
• 61ce024 Update build status badge
• d28a23b Prevent build.rs rerunning unnecessarily on all source changes
• 05316ff Time out workflows after 45 minutes
• 626d7c7 Merge pull request #294 from dtolnay/isize
• 6b0af67 Restore compatibility with rustc older than 1.43
• Additional commits viewable in compare view

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