Bump debian from 11-slim to 12-slim in /build (#3996)

* Bump debian from 11-slim to 12-slim in /build

Bumps debian from 11-slim to 12-slim.

---
updated-dependencies:
- dependency-name: debian
  dependency-type: direct:production
...

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

* revert NAP

Signed-off-by: Luca Comellini <[email protected]>

---------

Signed-off-by: dependabot[bot] <[email protected]>
Signed-off-by: Luca Comellini <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Luca Comellini <[email protected]>

Author: dependabot[bot]

build/Dockerfile

@@ -59,7 +59,7 @@ RUN --mount=type=bind,from=alpine-fips,target=/tmp/fips/ \
 
 
 ############################################# Base image for Debian with NGINX Plus #############################################
-FROM debian:11-slim AS debian-plus
+FROM debian:12-slim AS debian-plus
 ARG IC_VERSION
 ARG NGINX_PLUS_VERSION
 ARG BUILD_OS