*/*: 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>

app-admin/hardinfo2/hardinfo2-2.2.13.ebuild

@@ -1,4 +1,4 @@
-# Copyright 2024 Gentoo Authors
+# Copyright 2024-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -20,7 +20,7 @@ REQUIRED_USE="wayland? ( vulkan ) X? ( vulkan )"
 DEPEND="
 	x11-libs/gtk+:3[wayland?]
 	>=dev-libs/glib-2.24
-	sys-libs/zlib
+	virtual/zlib
 	dev-libs/json-glib
 	net-libs/libsoup:3.0
 	x11-libs/cairo

app-admin/i2pd-tools/i2pd-tools-2025.08.21.ebuild

@@ -23,7 +23,7 @@ IUSE="cpu_flags_x86_aes"
 DEPEND="
 	dev-libs/boost:=
 	dev-libs/openssl:=
-	sys-libs/zlib:=
+	virtual/zlib:=
 "
 RDEPEND="${DEPEND}"
 

app-admin/i2pd-tools/i2pd-tools-2025.10.16.ebuild

@@ -23,7 +23,7 @@ IUSE="cpu_flags_x86_aes"
 DEPEND="
 	dev-libs/boost:=
 	dev-libs/openssl:=
-	sys-libs/zlib:=
+	virtual/zlib:=
 "
 RDEPEND="${DEPEND}"
 

app-admin/ripasso/ripasso-0.7.0.ebuild

@@ -40,7 +40,7 @@ DEPEND="
 	dev-libs/libgpg-error
 	dev-libs/nettle
 	dev-libs/openssl:0=
-	sys-libs/zlib
+	virtual/zlib
 	gtk? ( gui-libs/gtk )
 "
 RDEPEND="${DEPEND}"