test: Rename testsuite-XX units to match test name

Having these named differently than the test itself mostly creates
unecessary confusion and makes writing logic against the tests harder
so let's rename the testsuite-xx units and scripts to just use the
test name itself.

mkosi.images/system/mkosi.conf

@@ -20,7 +20,7 @@ ExtraTrees=
         %O/minimal-1.root-%a.raw:/usr/share/minimal_1.raw
         %O/minimal-1.root-%a-verity.raw:/usr/share/minimal_1.verity
         %O/minimal-1.root-%a-verity-sig.raw:/usr/share/minimal_1.verity.sig
-        %O/minimal-base:/usr/share/testsuite-13-container-template
+        %O/minimal-base:/usr/share/TEST-13-NSPAWN-container-template
 
 Packages=
         acl

test/TEST-03-JOBS/TEST-03-JOBS.units/succeeds-on-restart-restartdirect.service

@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: LGPL-2.1-or-later
 [Service]
 Type=oneshot
-ExecStart=/usr/lib/systemd/tests/testdata/testsuite-03.units/succeeds-on-restart.sh
+ExecStart=/usr/lib/systemd/tests/testdata/TEST-03-JOBS.units/succeeds-on-restart.sh
 Restart=on-failure
 RestartMode=direct

test/TEST-03-JOBS/TEST-03-JOBS.units/succeeds-on-restart.service

@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: LGPL-2.1-or-later
 [Service]
 Type=oneshot
-ExecStart=/usr/lib/systemd/tests/testdata/testsuite-03.units/succeeds-on-restart.sh
+ExecStart=/usr/lib/systemd/tests/testdata/TEST-03-JOBS.units/succeeds-on-restart.sh
 Restart=on-failure
 RestartMode=normal