contrib: soxr: bump the minumum cmake to use CMAKE_REQUIRED_LIBRARIES

lrint uses libm which is set in CMAKE_REQUIRED_LIBRARIES. But
check_function_exists() won't use it with cmake older than 3.12.

This removes the need for Wno-dev.

contrib/src/soxr/rules.mak

@@ -21,6 +21,7 @@ soxr: soxr-$(SOXR_VERSION)-Source.tar.xz .sum-soxr
 	$(APPLY) $(SRC)/soxr/0003-add-aarch64-support.patch
 	$(APPLY) $(SRC)/soxr/0004-arm-fix-SIGILL-when-doing-divisions-on-some-old-arch.patch
 	$(APPLY) $(SRC)/soxr/find_ff_pkgconfig.patch
+	$(APPLY) $(SRC)/soxr/soxr-check-function.patch
 	$(call pkg_static,"src/soxr.pc.in")
 	$(MOVE)
 
@@ -40,7 +41,6 @@ endif
 		-DBUILD_TESTS=OFF \
 		-DWITH_LSR_BINDINGS=OFF \
 		-DWITH_OPENMP=OFF \
-		-DWITH_AVFFT=ON \
-		-Wno-dev
+		-DWITH_AVFFT=ON
 	+$(CMAKEBUILD) $< --target install
 	touch $@

contrib/src/soxr/soxr-check-function.patch

+--- soxr/CMakeLists.txt.31	2022-09-01 14:44:39.096702600 +0200
++++ soxr/CMakeLists.txt	2022-09-01 14:44:30.250234300 +0200
+@@ -1,7 +1,7 @@
+ # SoX Resampler Library       Copyright (c) 2007-18 robs@users.sourceforge.net
+ # Licence for this file: LGPL v2.1                  See LICENCE for details.
+ 
+-cmake_minimum_required (VERSION 3.1 FATAL_ERROR)
++cmake_minimum_required (VERSION 3.12 FATAL_ERROR)
+ 
+ project (soxr C)
+ set (DESCRIPTION_SUMMARY