Bumps example-builder.toml.

- Bump docker.io/paketocommunity/cargo from 0.12.0 to 0.12.0
- Bump docker.io/paketocommunity/rust-dist from 1.29.0 to 1.30.0
- Bump docker.io/paketocommunity/rustup from 1.12.0 to 1.12.0
- Bump docker.io/paketobuildpacks/procfile from 5.9.0 to 5.9.0
- Bump docker.io/paketobuildpacks/syft from 1.47.0 to 1.47.0

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

example-builder.toml

@@ -6,7 +6,7 @@ description = "A sample Builder for using Rust related CNBs"
 
 [[buildpacks]]
   id = "paketo-community/rust-dist"
-  uri = "docker://docker.io/paketocommunity/rust-dist:1.29.0"
+  uri = "docker://docker.io/paketocommunity/rust-dist:1.30.0"
 
 [[buildpacks]]
   id = "paketo-buildpacks/syft"