Bump dtoa from 0.4.4 to 0.4.5 (#375)
Bump dtoa from 0.4.4 to 0.4.5 (#375)

Bumps [dtoa](https://github.com/dtolnay/dtoa) from 0.4.4 to 0.4.5.
- [Release notes](https://github.com/dtolnay/dtoa/releases)
- [Commits](https://github.com/dtolnay/dtoa/compare/0.4.4...0.4.5)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
alex/ct-tools,alex/ct-tools