*/*: update for virtual/zlib

Update done using:

```
git grep -l sys-libs/zlib sys-* | xargs sed -i -e s@sys-libs/zlib@virtual/zlib@g
git grep -l virtual/zlib-ng sys-* | xargs sed -i -e s@virtual/zlib-ng@sys-libs/zlib-ng@g
git diff --name-only | xargs copybump
git diff --name-only | xargs grep -l PYTHON_COMPAT | xargs gpy-impl -@dead
pkgcheck scan --commits -c SourcingCheck,VisibilityCheck --exit error
```

Signed-off-by: Paul Zander <negril.nx+gentoo@gmail.com>

gui-apps/organicmaps/organicmaps-9999.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -27,7 +27,7 @@ SLOT="0"
 
 REQUIRED_USE="${PYTHON_REQUIRED_USE}"
 
-# depend on sys-libs/zlib[minizip] when it is not pulled in as subproject anymore
+# depend on virtual/zlib[minizip] when it is not pulled in as subproject anymore
 RDEPEND="
 	dev-cpp/gflags
 	dev-db/sqlite
@@ -40,7 +40,7 @@ RDEPEND="
 	dev-qt/qtsvg:6
 	dev-util/vulkan-headers
 	media-libs/freetype
-	sys-libs/zlib
+	virtual/zlib
 	${PYTHON_DEPS}
 "
 DEPEND="${RDEPEND}"

gui-apps/wlogout/wlogout-1.2.2-r1.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -37,7 +37,7 @@ DEPEND="
 	media-libs/libjpeg-turbo:=
 	media-libs/libpng:=
 	sys-apps/dbus
-	sys-libs/zlib:=
+	virtual/zlib:=
 	x11-libs/cairo
 	x11-libs/gdk-pixbuf:2
 	x11-libs/gtk+:3[wayland]

gui-apps/wlogout/wlogout-9999.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -37,7 +37,7 @@ DEPEND="
 	media-libs/libjpeg-turbo:=
 	media-libs/libpng:=
 	sys-apps/dbus
-	sys-libs/zlib:=
+	virtual/zlib:=
 	x11-libs/cairo
 	x11-libs/gdk-pixbuf:2
 	x11-libs/gtk+:3[wayland]