ci: use unstable release for cross-compile

We added cross-compile tests with testing debian release to be able to
replicate the error reported in #1653, however, installing build
dependencies in this release currently fails with the following error:

libc6-dev:armhf : Breaks: libc6-dev-armhf-cross (< 2.33~) but 2.32-1cross4 is to be installed

This is not something we can fix, therefore using the debian unstable
release (instead of testing) could be more reliable option for our CI.
This would still replicate the problem reported in #1653.

Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>

.github/workflows/cross-compile.yml

@@ -10,13 +10,13 @@ jobs:
       matrix:
         target: [
           armv7-stable-cross,
-          armv7-testing-cross,
+          armv7-unstable-cross,
           aarch64-stable-cross,
-          aarch64-testing-cross,
+          aarch64-unstable-cross,
           ppc64-stable-cross,
-          ppc64-testing-cross,
+          ppc64-unstable-cross,
           mips64el-stable-cross,
-          mips64el-testing-cross
+          mips64el-unstable-cross
         ]
 
     steps:

scripts/build/Dockerfile.aarch64-testing-cross.tmpl

@@ -1 +0,0 @@
-Dockerfile.testing-cross.tmpl

scripts/build/Dockerfile.aarch64-unstable-cross.tmpl

@@ -0,0 +1 @@
+Dockerfile.unstable-cross.tmpl

scripts/build/Dockerfile.armv7-testing-cross.tmpl

@@ -1 +0,0 @@
-Dockerfile.testing-cross.tmpl

scripts/build/Dockerfile.armv7-unstable-cross.tmpl

@@ -0,0 +1 @@
+Dockerfile.unstable-cross.tmpl

scripts/build/Dockerfile.mips64el-testing-cross.tmpl

@@ -1 +0,0 @@
-Dockerfile.testing-cross.tmpl

scripts/build/Dockerfile.mips64el-unstable-cross.tmpl

@@ -0,0 +1 @@
+Dockerfile.unstable-cross.tmpl

scripts/build/Dockerfile.ppc64-testing-cross.tmpl

@@ -1 +0,0 @@
-Dockerfile.testing-cross.tmpl

scripts/build/Dockerfile.ppc64-unstable-cross.tmpl

@@ -0,0 +1 @@
+Dockerfile.unstable-cross.tmpl

scripts/build/Dockerfile.unstable-cross.tmpl

@@ -1,7 +1,7 @@
 COPY scripts/ci/apt-install /bin/apt-install
 
 # Add the cross compiler sources
-RUN echo "deb http://deb.debian.org/debian/ testing main" >> /etc/apt/sources.list && \
+RUN echo "deb http://deb.debian.org/debian/ unstable main" >> /etc/apt/sources.list && \
   dpkg --add-architecture ${DEBIAN_ARCH}
 
 RUN apt-install \

scripts/build/Makefile

@@ -1,7 +1,7 @@
 ARCHES := x86_64 fedora-asan fedora-rawhide centos7 armv7hf centos8
 STABLE_CROSS_ARCHES := armv7-stable-cross aarch64-stable-cross ppc64-stable-cross mips64el-stable-cross
-TESTING_CROSS_ARCHES := armv7-testing-cross aarch64-testing-cross ppc64-testing-cross mips64el-testing-cross
-NON_CLANG := $(TESTING_CROSS_ARCHES) $(STABLE_CROSS_ARCHES)
+UNSTABLE_CROSS_ARCHES := armv7-unstable-cross aarch64-unstable-cross ppc64-unstable-cross mips64el-unstable-cross
+NON_CLANG := $(UNSTABLE_CROSS_ARCHES) $(STABLE_CROSS_ARCHES)
 CREATE_DOCKERFILES := $(ARCHES) $(NON_CLANG)
 TARGETS := $(ARCHES) alpine archlinux
 TARGETS_CLANG := $(addsuffix $(TARGETS),-clang)