Set GLOBAL_VENV to false for centos and rocky

As a temporary workaround, let's set the GLOBAL_VENV to false
specifically for centos 9 stream and rocky distros where we
encountered issues after changing the default value
of GLOBAL_VENV to True in Devstack:
https://review.opendev.org/c/openstack/devstack/+/558930

Related-Bug: #2031639
Change-Id: I708b5a81c32b0bd650dcd63a51e16346863a6fc0

.zuul.yaml

@@ -708,9 +708,6 @@
     nodeset: devstack-single-node-centos-9-stream
     timeout: 9000
     voting: false
-    vars:
-      devstack_localrc:
-        GLOBAL_VENV: false
 
 - job:
     name: devstack-platform-debian-bookworm
@@ -745,8 +742,6 @@
     timeout: 9000
     vars:
       configure_swap_size: 4096
-      devstack_localrc:
-        GLOBAL_VENV: false
 
 - job:
     name: devstack-platform-ubuntu-focal

stackrc

@@ -188,9 +188,18 @@ ENFORCE_SCOPE=$(trueorfalse False ENFORCE_SCOPE)
 # Note that the DATA_DIR is selected because grenade testing uses a shared
 # DATA_DIR but different DEST dirs and we don't want two sets of venvs,
 # instead we want one global set.
-GLOBAL_VENV=$(trueorfalse True GLOBAL_VENV)
 DEVSTACK_VENV=${DEVSTACK_VENV:-$DATA_DIR/venv}
 
+# NOTE(kopecmartin): remove this once this is fixed
+# https://bugs.launchpad.net/devstack/+bug/2031639
+# This couldn't go to fixup_stuff as that's called after projects
+# (e.g. certain paths) are set taking GLOBAL_VENV into account
+if [[ "$os_VENDOR" =~ (CentOSStream|Rocky) ]]; then
+    GLOBAL_VENV=$(trueorfalse False GLOBAL_VENV)
+else
+    GLOBAL_VENV=$(trueorfalse True GLOBAL_VENV)
+fi
+
 # Enable use of Python virtual environments.  Individual project use of
 # venvs are controlled by the PROJECT_VENV array; every project with
 # an entry in the array will be installed into the named venv.