Bump proc-macro2 from 1.0.24 to 1.0.26 (#523)
Bump proc-macro2 from 1.0.24 to 1.0.26 (#523)

Bumps [proc-macro2](https://github.com/alexcrichton/proc-macro2) from 1.0.24 to 1.0.26.
- [Release notes](https://github.com/alexcrichton/proc-macro2/releases)
- [Commits](https://github.com/alexcrichton/proc-macro2/compare/1.0.24...1.0.26)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
alex/csv-sql