doc: move upgrade note to correct section

The PR for the behavior change of dealing with spaces in http URI and
protocol was started in 2019 and merged in 2024. When the PR was
created, it belonged to the correct upgrade section, however, by the
time it was merged, it was 8.0.x branch already.
Move it to upgrade notes from 7 to 8 for correctness.

doc/userguide/upgrade.rst

@@ -152,6 +152,9 @@ Major changes
   ``app-layer.protocols.ssh.encryption-handling`` to ``bypass`` (while also
   setting ``app-layer.protocols.tls.encryption-handling`` to ``bypass`` and
   ``stream.bypass`` to ``true``).
+- Spaces are accepted in HTTP1 URIs instead of in the protocol version. That is:
+  `GET /a b HTTP/1.1` gets now URI as `/a b` and protocol as `HTTP/1.1` when
+  it used to be URI as `/a` and protocol as `b HTTP/1.1`
 
 Removals
 ~~~~~~~~
@@ -202,9 +205,6 @@ Major changes
   <https://forum.suricata.io/t/my-traffic-gets-blocked-after-upgrading-to-suricata-7>`_.
 - New protocols enabled by default: bittorrent-dht, quic, http2.
 - The telnet protocol is also enabled by default, but only for the ``app-layer``.
-- Spaces are accepted in HTTP1 URIs instead of in the protocol version. That is:
-  `GET /a b HTTP/1.1` gets now URI as `/a b` and protocol as `HTTP/1.1` when
-  it used to be URI as `/a` and protocol as `b HTTP/1.1`
 
 Security changes
 ~~~~~~~~~~~~~~~~