chore(deps): bump ubuntu in /.devcontainer/cpp

Bumps ubuntu from `728785b` to `66460d5`.

---
updated-dependencies:
- dependency-name: ubuntu
  dependency-version: '24.04'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

.devcontainer/cpp/Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM ubuntu:24.04@sha256:728785b59223d755e3e5c5af178fab1be7031f3522c5ccd7a0b32b80d8248123 AS extractor
+FROM ubuntu:24.04@sha256:66460d557b25769b102175144d538d88219c077c678a49af4afca6fbfc1b5252 AS extractor
 
 ARG BATS_CORE_VERSION=1.12.0
 ARG BATS_SUPPORT_VERSION=0.3.0
@@ -17,7 +17,7 @@ RUN tar xzf /bats-core.tar.gz && mv bats-core-*/ bats-core \
  && tar xzf /bats-support.tar.gz && mv bats-support-*/ bats-support \
  && tar xzf /bats-assert.tar.gz && mv bats-assert-*/ bats-assert
 
-FROM ubuntu:24.04@sha256:728785b59223d755e3e5c5af178fab1be7031f3522c5ccd7a0b32b80d8248123
+FROM ubuntu:24.04@sha256:66460d557b25769b102175144d538d88219c077c678a49af4afca6fbfc1b5252
 
 ARG CCACHE_VERSION=4.12
 ARG CLANG_VERSION=18