Bump downcast-rs from 1.0.3 to 1.1.1

Bumps [downcast-rs](https://github.com/marcianx/downcast-rs) from 1.0.3 to 1.1.1.
- [Release notes](https://github.com/marcianx/downcast-rs/releases)
- [Changelog](https://github.com/marcianx/downcast-rs/blob/v1.1.1/CHANGELOG.md)
- [Commits](https://github.com/marcianx/downcast-rs/compare/v1.0.3...v1.1.1)

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

Cargo.lock

@@ -1310,9 +1310,9 @@ dependencies = [
 
 [[package]]
 name = "downcast-rs"
-version = "1.0.3"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18df8ce4470c189d18aa926022da57544f31e154631eb4cfe796aea97051fe6c"
+checksum = "52ba6eb47c2131e784a38b726eb54c1e1484904f013e576a25354d0124161af6"
 
 [[package]]
 name = "dtoa"