Fix HIGH severity kernel vulnerabilities in dev container base image (#10)

* Initial plan

* Fix high-severity security vulnerabilities by upgrading packages

Co-authored-by: idvoretskyi <118459+idvoretskyi@users.noreply.github.com>

* Add --no-install-recommends flag to apt-get upgrade for consistency

Co-authored-by: idvoretskyi <118459+idvoretskyi@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: idvoretskyi <118459+idvoretskyi@users.noreply.github.com>

Author: Copilot

.devcontainer/Dockerfile

@@ -2,6 +2,7 @@ FROM mcr.microsoft.com/devcontainers/base:ubuntu-24.04
 
 # hadolint ignore=DL3008
 RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y upgrade --no-install-recommends \
     && apt-get -y install --no-install-recommends \
         curl \
         wget \