orchestra/opsys: add tumbleweed version to the distro version map

openSUSE Tumbleweed is a rolling release, so it has fixed version number
and changable version id is represented by a date of snapshot,
example of vm image:

openSUSE-Tumbleweed-Minimal-VM.x86_64-1.0.0-Cloud-Snapshot20250224.qcow2

In comparison, openSUSE Leap has regular release, incremental version, for example:
15.0, 15.1, ..., 15.6, etc., and recently introduced 16.0 alpha.

Because there is no sense to stick to the date, it is changing almost daily,
it is suggested to fix Tumbleweed version to 1.0 to distinguish from Leap.
As a side effect, once Teuthology locks a node with imaged Tumbleweed
it updates os version correctly to date of release in paddles, and
pulpito display it interface correspondingly as the date.

Signed-off-by: Kyrylo Shatskyy <[email protected]>

teuthology/orchestra/opsys.py

@@ -61,6 +61,7 @@
         "20": "heisenbug",
     },
     "opensuse": {
+        "1.0": "tumbleweed",
         "15.0": "leap",
         "15.1": "leap",
         "15.2": "leap",