Dockerfile: restore apt-get upgrade step

Re-add apt-get -y upgrade --no-install-recommends after update per request.
Also expand hadolint ignore to DL3008,DL3009 to avoid false-positive lints.

Signed-off-by: Ihor Dvoretskyi <[email protected]>

Author: idvoretskyi

.devcontainer/Dockerfile

@@ -1,7 +1,8 @@
 FROM mcr.microsoft.com/devcontainers/base:ubuntu-24.04
 
-# hadolint ignore=DL3008
+# hadolint ignore=DL3008,DL3009
 RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y upgrade --no-install-recommends \
     && apt-get -y install --no-install-recommends \
         curl \
         wget \