frei0r-plugins: Fix building with cmake 4

mingw-w64-frei0r-plugins/0001-backport-eb9e96d.patch

@@ -0,0 +1,8 @@
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,4 +1,4 @@
+-cmake_minimum_required (VERSION 3.1)
++cmake_minimum_required (VERSION 3.12...3.31)
+ 
+ list (APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
+ 

mingw-w64-frei0r-plugins/PKGBUILD

@@ -26,10 +26,17 @@ if [[ ${CARCH} != i686 ]]; then
   optdepends+=("${MINGW_PACKAGE_PREFIX}-gavl: rgbparade, scale0tilt and vectorscope plugins"
                "${MINGW_PACKAGE_PREFIX}-opencv: facebl0r and facedetect plugins")
 fi
-source=("https://github.com/dyne/frei0r/archive/v${pkgver}/${_realname}-${pkgver}.tar.gz")
-sha256sums=('aeeefe3a9b44761b2cf110017d2b1dfa2ceeb873da96d283ba5157380c5d0ce5')
+source=("https://github.com/dyne/frei0r/archive/v${pkgver}/${_realname}-${pkgver}.tar.gz"
+        0001-backport-eb9e96d.patch)
+sha256sums=('aeeefe3a9b44761b2cf110017d2b1dfa2ceeb873da96d283ba5157380c5d0ce5'
+            'd1ee0822b722778bc50263c568b91331ba7e6fc67c0e6fccf45176e0e00f6794')
 validpgpkeys=('6113D89CA825C5CEDD02C87273B35DA54ACB7D10') # Denis Roio (Jaromil)
 
+prepare() {
+  cd "frei0r-${pkgver}"
+  patch -p1 -i "${srcdir}"/0001-backport-eb9e96d.patch
+}
+
 build() {
   mkdir -p "${srcdir}/build-${MSYSTEM}" && cd "${srcdir}/build-${MSYSTEM}"