Bump rust from 1.72 to 1.73

Bumps rust from 1.72 to 1.73.

---
updated-dependencies:
- dependency-name: rust
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Dockerfile

@@ -13,7 +13,7 @@
 # permissions and limitations under the License.
 
 # Stage 1: Build the cp-utility binary
-FROM rust:1.72 as builder
+FROM rust:1.73 as builder
 
 WORKDIR /usr/src/cp-utility
 COPY ./tools/cp-utility .