Bump kernel versions for ppc64 and sparc64

Author: nagisa

docker/linux-image.sh

@@ -49,8 +49,8 @@ main() {
         powerpc64)
             # there is no stable port
             arch=ppc64
-            # https://packages.debian.org/de/sid/linux-image-powerpc64
-            kernel=5.2.0-3-powerpc64
+            # https://packages.debian.org/en/sid/linux-image-powerpc64
+            kernel=5.3.0-1-powerpc64
             debsource="deb http://ftp.ports.debian.org/debian-ports unreleased main"
             debsource="$debsource\ndeb http://ftp.ports.debian.org/debian-ports unstable main"
             # sid version of dropbear requires these dependencies
@@ -66,8 +66,8 @@ main() {
             ;;
         sparc64)
             # there is no stable port
-            # https://packages.debian.org/de/sid/linux-image-sparc64
-            kernel=5.2.0-3-sparc64
+            # https://packages.debian.org/en/sid/linux-image-sparc64
+            kernel=5.3.0-1-sparc64
             debsource="deb http://ftp.ports.debian.org/debian-ports unreleased main"
             debsource="$debsource\ndeb http://ftp.ports.debian.org/debian-ports unstable main"
             # sid version of dropbear requires these dependencies