versions: Bump Ubuntu rootfs / initrd versions

While I wish we could be bumping to the very same version everywhere,
it's not possible and it's been quite a ride to get a combination of
things that work.

Let me try to describe my approach here:
* Do *NOT* stay on 20.04
  * This version will be EOL'ed by April
  * This version has a very old version of systemd that causes a bug
    when trying to online the cpusets for guests using systemd as
    init, causing then a breakage on the qemu-coco-non-tee and TDX
    non-attestation set of tests

* Bump to 22.04 when possible
  * This was possible for the majority of the cases, but for the
    confidential initrd & confidential images for x86_64, the reason
    being failures on AMD SEV CI (which I didn't debug), and a kernel
    panic on the CentOS 9 Stream TDX machine
  * 22.04 is being used instead of 24.04 as multistrap is simply broken
    on Ubuntu 24.04, and I'd prefer to stay on an LTS release whenever
    it's possible

* Bump to 24.10 for x86_64 image confidential
  * This was done as we got everything working with 24.10 in the CI.
  * This requires using libtdx-attest from noble (Ubuntu 24.04), as
    Intel only releases their sgx stuff for LTS releases.

* Stick to 20.04 for x86_64 initrd confidential
  * 24.10 caused a panic on their CI
  * This is only being used by AMD so far, so they can decide when to
    bump, after doing the proper testing & debug that the bump will work
    as expected for them

Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>

tools/osbuilder/rootfs-builder/ubuntu/rootfs_lib.sh

@@ -31,11 +31,15 @@ EOF
 		curl -fsSL https://download.01.org/intel-sgx/sgx_repo/ubuntu/intel-sgx-deb.key |
 			gpg --dearmour -o $rootfs_dir/etc/apt/trusted.gpg.d/intel-sgx-deb.gpg
 		sed -i -e "s/bootstrap=Ubuntu/bootstrap=Ubuntu intel-sgx/" $multistrap_conf
+		SUITE=$OS_VERSION
+		# Intel does not release sgx stuff for non-LTS, thus if using oracular (24.10),
+		# we need to enforce getting libtdx-attest from noble.
+		[ "$SUITE" = "oracular" ] && SUITE="noble"
 		cat >> $multistrap_conf << EOF
 
 [intel-sgx]
 source=https://download.01.org/intel-sgx/sgx_repo/ubuntu
-suite=$OS_VERSION
+suite=$SUITE
 packages=libtdx-attest=1.22\*
 EOF
 	fi

versions.yaml

@@ -117,7 +117,7 @@ assets:
     architecture:
       aarch64:
         name: "ubuntu"
-        version: "focal" # 20.04 LTS
+        version: "jammy" # 22.04 LTS
         nvidia-gpu:
           name: "ubuntu"
           version: "jammy" # 22.04 LTS
@@ -126,19 +126,19 @@ assets:
           version: "jammy" # 22.04 LTS
       ppc64le:
         name: "ubuntu"
-        version: "focal" # 20.04 LTS
+        version: "jammy" # 22.04 LTS
       s390x:
         name: "ubuntu"
-        version: "focal" # 20.04 LTS
+        version: "jammy" # 22.04 LTS
         confidential:
           name: "ubuntu"
-          version: "focal" # 20.04 LTS
+          version: "jammy" # 22.04 LTS
       x86_64:
         name: "ubuntu"
-        version: "focal" # 20.04 lTS
+        version: "jammy" # 22.04 lTS
         confidential:
           name: "ubuntu"
-          version: "focal" # 20.04 LTS
+          version: "oracular" # 24.10
         mariner:
           name: "cbl-mariner"
           version: "3.0"
@@ -168,13 +168,13 @@ assets:
       # there is no such Rust target
       ppc64le:
         name: "ubuntu"
-        version: "focal" # 20.04 LTS
+        version: "jammy" # 22.04 LTS
       s390x:
         name: "ubuntu"
-        version: "focal" # 20.04 LTS
+        version: "jammy" # 22.04 LTS
         confidential:
           name: "ubuntu"
-          version: "focal" # 20.04 LTS
+          version: "jammy" # 22.04 LTS
       x86_64:
         name: "alpine"
         version: "3.18"