Bump chrono from 0.4.13 to 0.4.15

Bumps [chrono](https://github.com/chronotope/chrono) from 0.4.13 to 0.4.15.
- [Release notes](https://github.com/chronotope/chrono/releases)
- [Changelog](https://github.com/chronotope/chrono/blob/main/CHANGELOG.md)
- [Commits](https://github.com/chronotope/chrono/compare/v0.4.13...v0.4.15)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/Cargo.toml b/Cargo.toml
index d717089..0d6fd15 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,7 @@ bytesize = "1.0.0"
 nanoid = "0.3"
 alphanumeric-sort = "1.4.0"
 structopt = "0.3"
-chrono = "0.4.13"
+chrono = "0.4.15"
 chrono-humanize = "0.0.11"
 maud = { version = "0.22.0", features = ["actix-web"] }
 serde = { version = "1.0.115", features = ["derive"] }