Update rubberband build options

Signed-off-by: nanake <nanake@users.noreply.github.com>

scripts.d/50-rubberband.sh

@@ -17,6 +17,8 @@ ffbuild_dockerbuild() {
     local myconf=(
         --prefix="$FFBUILD_PREFIX"
         -Ddefault_library=static
+        -Dfft=fftw
+        -Dresampler=libsamplerate
     )
 
     if [[ $TARGET == win* || $TARGET == linux* ]]; then
@@ -31,9 +33,6 @@ ffbuild_dockerbuild() {
     meson "${myconf[@]}" ..
     ninja -j$(nproc)
     ninja install
-
-    # Fix static linking
-    echo "Requires.private: fftw3 samplerate" >> "$FFBUILD_PREFIX"/lib/pkgconfig/rubberband.pc
 }
 
 ffbuild_configure() {