app-containers/podman: Sync with Gentoo

It's from Gentoo commit 24840b461a6fa456e76a9cc0d74edae4a6b80d33.

Signed-off-by: Flatcar Buildbot <buildbot@flatcar-linux.org>

sdk_container/src/third_party/portage-stable/app-containers/podman/files/podman-5.2.5-togglable-seccomp.patch

@@ -1,10 +0,0 @@
---- a/Makefile
-+++ b/Makefile
-@@ -56,7 +56,6 @@ BUILDTAGS ?= \
-	$(shell hack/systemd_tag.sh) \
-	$(shell hack/libsubid_tag.sh) \
-	exclude_graphdriver_devicemapper \
--	seccomp
- # allow downstreams to easily add build tags while keeping our defaults
- BUILDTAGS += ${EXTRA_BUILDTAGS}
- # N/B: This value is managed by Renovate, manual changes are

sdk_container/src/third_party/portage-stable/app-containers/podman/metadata.xml

@@ -24,10 +24,10 @@
 	</longdescription>
 	<use>
 		<flag name="btrfs">
-			Enables btrfs support (graph driver) in Podman
+			Enable btrfs support (graph driver) in Podman
 		</flag>
 		<flag name="wrapper">
-			Install wrapper which lets use podman for command `docker`
+			Install a wrapper to allow using `podman` as a drop-in replacement for `docker`
 		</flag>
 	</use>
 	<upstream>

sdk_container/src/third_party/portage-stable/app-containers/podman/podman-5.7.1.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2025 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -17,7 +17,7 @@ else
 	SRC_URI="https://github.com/containers/podman/archive/v${PV/_rc/-rc}.tar.gz -> ${P}.tar.gz"
 	S="${WORKDIR}/${P/_rc/-rc}"
 	[[ ${PV} != *rc* ]] && \
-		KEYWORDS="~amd64 ~arm64 ~loong ~riscv"
+		KEYWORDS="amd64 arm64 ~loong ~riscv"
 fi
 
 # main pkg