*/*: 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>

games-arcade/taisei/taisei-1.4.2.ebuild

@@ -32,7 +32,7 @@ RDEPEND="
 	media-libs/libwebp
 	media-libs/opusfile
 	app-arch/zstd
-	sys-libs/zlib
+	virtual/zlib
 	dev-libs/openssl:=
 	zip? ( dev-libs/libzip[zstd] )
 "

games-arcade/taisei/taisei-1.4.3.ebuild

@@ -33,7 +33,7 @@ RDEPEND="
 	media-libs/libwebp
 	media-libs/opusfile
 	app-arch/zstd
-	sys-libs/zlib
+	virtual/zlib
 	dev-libs/openssl:=
 	mimalloc? ( dev-libs/mimalloc:= )
 	zip? ( dev-libs/libzip[zstd] )

games-arcade/taisei/taisei-1.4.4.ebuild

@@ -33,7 +33,7 @@ RDEPEND="
 	media-libs/libwebp
 	media-libs/opusfile
 	app-arch/zstd
-	sys-libs/zlib
+	virtual/zlib
 	dev-libs/openssl:=
 	mimalloc? ( dev-libs/mimalloc:= )
 	zip? ( dev-libs/libzip[zstd] )

games-arcade/taisei/taisei-9999.ebuild

@@ -32,7 +32,7 @@ RDEPEND="
 	media-libs/libwebp
 	media-libs/opusfile
 	app-arch/zstd
-	sys-libs/zlib
+	virtual/zlib
 	dev-libs/openssl:=
 	zip? ( dev-libs/libzip[zstd] )
 "