build(deps): bump rustversion from 1.0.19 to 1.0.20 (#3712)

Bumps [rustversion](https://github.com/dtolnay/rustversion) from 1.0.19 to 1.0.20.
- [Release notes](https://github.com/dtolnay/rustversion/releases)
- [Commits](https://github.com/dtolnay/rustversion/compare/1.0.19...1.0.20)

---
updated-dependencies:
- dependency-name: rustversion
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.lock

@@ -3530,9 +3530,9 @@ dependencies = [
 
 [[package]]
 name = "rustversion"
-version = "1.0.19"
+version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7c45b9784283f1b2e7fb61b42047c2fd678ef0960d4f6f1eba131594cc369d4"
+checksum = "eded382c5f5f786b989652c49544c4877d9f015cc22e145a5ea8ea66c2921cd2"
 
 [[package]]
 name = "ryu"