Add workaround patch for dracut generator issue

... (rhbz#2164404)

26494.patch

@@ -0,0 +1,30 @@
+From 6b25470ee28843a49c50442e9d8a98edc842ceca Mon Sep 17 00:00:00 2001
+From: Yu Watanabe <watanabe.yu+github@gmail.com>
+Date: Mon, 20 Feb 2023 12:00:30 +0900
+Subject: [PATCH] core/manager: run generators directly when we are in initrd
+
+Some initrd system write files at ourside of /run, /etc, or other
+allowed places. This is a kind of workaround, but in most cases, such
+sandboxing is not necessary as the filesystem is on ramfs when we are in
+initrd.
+
+Fixes #26488.
+---
+ src/core/manager.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/core/manager.c b/src/core/manager.c
+index 7b394794b0d4..306477c6e6c2 100644
+--- a/src/core/manager.c
++++ b/src/core/manager.c
+@@ -3822,8 +3822,8 @@ static int manager_run_generators(Manager *m) {
+         /* If we are the system manager, we fork and invoke the generators in a sanitized mount namespace. If
+          * we are the user manager, let's just execute the generators directly. We might not have the
+          * necessary privileges, and the system manager has already mounted /tmp/ and everything else for us.
+-         */
+-        if (MANAGER_IS_USER(m)) {
++         * If we are in initrd, let's also execute the generators directly, as we are in ramfs. */
++        if (MANAGER_IS_USER(m) || in_initrd()) {
+                 r = manager_execute_generators(m, paths, /* remount_ro= */ false);
+                 goto finish;
+         }

systemd.spec

@@ -90,6 +90,9 @@ GIT_DIR=../../src/systemd/.git git diffab -M v233..master@{2017-06-15} -- hwdb/[
 # than in the next section. Packit CI will drop any patches in this range before
 # applying upstream pull requests.
 
+# https://github.com/systemd/systemd/issues/26488
+# https://bugzilla.redhat.com/show_bug.cgi?id=2164404
+Patch0001:      https://patch-diff.githubusercontent.com/raw/systemd/systemd/pull/26494.patch
 
 # Those are downstream-only patches, but we don't want them in packit builds:
 # https://bugzilla.redhat.com/show_bug.cgi?id=1738828