automation: switch from Debian unstable to bookworm

Debian unstable used in the Xen containers is actually bookworm.
Switching to bookworm which is now stable means we are not basing our
containers on a moving target anymore.

Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
Reviewed-by: Michal Orzel <michal.orzel@amd.com>

automation/build/debian/bookworm-arm64v8-arm32-gcc.dockerfile

@@ -1,4 +1,4 @@
-FROM arm64v8/debian:unstable
+FROM arm64v8/debian:bookworm
 LABEL maintainer.name="The Xen Project" \
       maintainer.email="xen-devel@lists.xenproject.org"
 

automation/build/debian/bookworm-arm64v8.dockerfile

@@ -1,4 +1,4 @@
-FROM arm64v8/debian:unstable
+FROM arm64v8/debian:bookworm
 LABEL maintainer.name="The Xen Project" \
       maintainer.email="xen-devel@lists.xenproject.org"
 

automation/build/debian/bookworm-cppcheck.dockerfile

@@ -1,4 +1,4 @@
-FROM arm64v8/debian:unstable AS builder
+FROM arm64v8/debian:bookworm AS builder
 
 ENV DEBIAN_FRONTEND=noninteractive
 ENV CPPCHECK_VERSION=2.7
@@ -24,7 +24,7 @@ RUN curl -fsSLO https://github.com/danmar/cppcheck/archive/"$CPPCHECK_VERSION".t
         FILESDIR=/usr/share/cppcheck \
         HAVE_RULES=yes CXXFLAGS="-O2 -DNDEBUG -Wall -Wno-sign-compare -Wno-unused-function"
 
-FROM arm64v8/debian:unstable
+FROM arm64v8/debian:bookworm
 COPY --from=builder /usr/bin/cppcheck /usr/bin/cppcheck
 COPY --from=builder /usr/share/cppcheck /usr/share/cppcheck
 

automation/build/debian/bookworm-i386.dockerfile

@@ -1,4 +1,4 @@
-FROM i386/debian:unstable
+FROM i386/debian:bookworm
 LABEL maintainer.name="The Xen Project" \
       maintainer.email="xen-devel@lists.xenproject.org"
 

automation/build/debian/bookworm.dockerfile

@@ -1,4 +1,4 @@
-FROM debian:unstable
+FROM debian:bookworm
 LABEL maintainer.name="The Xen Project" \
       maintainer.email="xen-devel@lists.xenproject.org"
 

automation/scripts/containerize

@@ -37,11 +37,11 @@ case "_${CONTAINER}" in
     _stretch|_) CONTAINER="${BASE}/debian:stretch" ;;
     _stretch-i386) CONTAINER="${BASE}/debian:stretch-i386" ;;
     _buster-gcc-ibt) CONTAINER="${BASE}/debian:buster-gcc-ibt" ;;
-    _unstable|_) CONTAINER="${BASE}/debian:unstable" ;;
-    _unstable-i386) CONTAINER="${BASE}/debian:unstable-i386" ;;
-    _unstable-arm64v8-arm32-gcc) CONTAINER="${BASE}/debian:unstable-arm64v8-arm32-gcc" ;;
-    _unstable-arm64v8) CONTAINER="${BASE}/debian:unstable-arm64v8" ;;
-    _unstable-cppcheck) CONTAINER="${BASE}/debian:unstable-cppcheck" ;;
+    _bookworm|_) CONTAINER="${BASE}/debian:bookworm" ;;
+    _bookworm-i386) CONTAINER="${BASE}/debian:bookworm-i386" ;;
+    _bookworm-arm64v8-arm32-gcc) CONTAINER="${BASE}/debian:bookworm-arm64v8-arm32-gcc" ;;
+    _bookworm-arm64v8) CONTAINER="${BASE}/debian:bookworm-arm64v8" ;;
+    _bookworm-cppcheck) CONTAINER="${BASE}/debian:bookworm-cppcheck" ;;
     _bionic) CONTAINER="${BASE}/ubuntu:bionic" ;;
     _trusty) CONTAINER="${BASE}/ubuntu:trusty" ;;
     _xenial) CONTAINER="${BASE}/ubuntu:xenial" ;;