btrfs-progs: ci: enable gcc 13 on tumbleweed

GCC 13 is now available, add it as default compiler to tumbleweed image
to catch new warnings.

Signed-off-by: David Sterba <dsterba@suse.com>

ci/images/ci-openSUSE-tumbleweed-x86_64/Dockerfile

@@ -26,6 +26,8 @@ RUN zypper install -y --no-recommends glibc-devel-static libblkid-devel-static \
 	    libcom_err-devel-static libext2fs-devel-static libuuid-devel-static \
 	    libzstd-devel-static lzo-devel-static zlib-devel-static
 
+RUN zypper install -y --no-recommends gcc13
+
 COPY ./test-build .
 COPY ./run-tests .
 COPY ./devel.tar.gz .

ci/images/ci-openSUSE-tumbleweed-x86_64/test-build

@@ -8,6 +8,11 @@ url="${urlbase}/${fname}"
 
 shift
 
+for i in gcc gcc-nm cc cpp gcc-ar gcc-ranlib lto-dump; do
+	ln -sf /usr/bin/${i}-13 /usr/bin/${i}
+done
+gcc --version
+
 echo "btrfs-progs build test of branch ${branch}"
 cd /tmp
 if [ -f "$fname" -a -s "$fname" ]; then