Do not install reno globally using pip

It does not work on Ubuntu Noble which requires using virtual
env when you try to install packages using pip. Also
for deployment tests reno is not needed because we build
charts with SKIP_CHANGELOG=1

Change-Id: I8f0578ed2e1d0e757add155c618eea2e8a2e30d2

roles/deploy-env/tasks/prerequisites.yaml

@@ -58,9 +58,4 @@
       - uuid-runtime
       - vim
       - wireguard
-
-- name: Install reno
-  pip:
-    name: reno>=4.1.0
-    extra_args: "--ignore-installed"
 ...

tools/deployment/common/prepare-charts.sh

@@ -19,5 +19,5 @@ make all SKIP_CHANGELOG=1
 # Build all OSH charts (necessary for Openstack deployment)
 (
     cd ${OSH_PATH:-"../openstack-helm"} &&
-    make all  SKIP_CHANGELOG=1
+    make all SKIP_CHANGELOG=1
 )