Update libwebp to 1.6.0 (#9082)

Author: hugovk

.github/workflows/wheels-dependencies.sh

@@ -103,7 +103,7 @@ TIFF_VERSION=4.7.0
 LCMS2_VERSION=2.17
 ZLIB_VERSION=1.3.1
 ZLIB_NG_VERSION=2.2.4
-LIBWEBP_VERSION=1.5.0  # Patched; next release won't need patching. See patch file.
+LIBWEBP_VERSION=1.6.0
 BZIP2_VERSION=1.0.8
 LIBXCB_VERSION=1.17.0
 BROTLI_VERSION=1.1.0  # Patched; next release won't need patching. See patch file.
@@ -280,7 +280,11 @@ function build {
     if [[ -n "$IS_MACOS" ]]; then
         webp_cflags="$webp_cflags -Wl,-headerpad_max_install_names"
     fi
-    CFLAGS="$CFLAGS $webp_cflags" build_simple libwebp $LIBWEBP_VERSION \
+    webp_ldflags=""
+    if [[ -n "$IOS_SDK" ]]; then
+        webp_ldflags="$webp_ldflags -llzma -lz"
+    fi
+    CFLAGS="$CFLAGS $webp_cflags" LDFLAGS="$LDFLAGS $webp_ldflags" build_simple libwebp $LIBWEBP_VERSION \
         https://storage.googleapis.com/downloads.webmproject.org/releases/webp tar.gz \
         --enable-libwebpmux --enable-libwebpdemux
 

depends/install_webp.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # install webp
 
-archive=libwebp-1.5.0
+archive=libwebp-1.6.0
 
 ./download-and-extract.sh $archive https://raw.githubusercontent.com/python-pillow/pillow-depends/main/$archive.tar.gz
 

patches/iOS/libwebp-1.5.0.tar.gz.patch

@@ -122,7 +122,7 @@ def cmd_msbuild(
     "LIBAVIF": "1.3.0",
     "LIBIMAGEQUANT": "4.3.4",
     "LIBPNG": "1.6.49",
-    "LIBWEBP": "1.5.0",
+    "LIBWEBP": "1.6.0",
     "OPENJPEG": "2.5.3",
     "TIFF": "4.7.0",
     "XZ": "5.8.1",