Minimum macOS version needed to build v7.2.2 and up is 10.13 (#9976)

Summary:
Some C++ code changes between version 7.1.2 and 7.2.2 now seem to require at least macOS 10.13 (2017) to build successfully, previously we needed 10.12 (2016). I haven't been able to identify the exact commit.

**NOTE**: This needs to be merged to both `main` and `7.2.fb` branches.

Pull Request resolved: facebook/rocksdb#9976

Reviewed By: jay-zhuang

Differential Revision: D36303226

Pulled By: ajkr

fbshipit-source-id: 589ce3ecf821db3402b0876e76d37b407896c945

build_tools/build_detect_platform

@@ -662,13 +662,13 @@ else
   fi
 
   if [[ "${PLATFORM}" == "OS_MACOSX" ]]; then
-    # For portability compile for macOS 10.12 (2016) or newer
-    COMMON_FLAGS="$COMMON_FLAGS -mmacosx-version-min=10.12"
-    PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -mmacosx-version-min=10.12"
+    # For portability compile for macOS 10.13 (2017) or newer
+    COMMON_FLAGS="$COMMON_FLAGS -mmacosx-version-min=10.13"
+    PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -mmacosx-version-min=10.13"
     # -mmacosx-version-min must come first here.
-    PLATFORM_SHARED_LDFLAGS="-mmacosx-version-min=10.12 $PLATFORM_SHARED_LDFLAGS"
-    PLATFORM_CMAKE_FLAGS="-DCMAKE_OSX_DEPLOYMENT_TARGET=10.12"
-    JAVA_STATIC_DEPS_COMMON_FLAGS="-mmacosx-version-min=10.12"
+    PLATFORM_SHARED_LDFLAGS="-mmacosx-version-min=10.13 $PLATFORM_SHARED_LDFLAGS"
+    PLATFORM_CMAKE_FLAGS="-DCMAKE_OSX_DEPLOYMENT_TARGET=10.13"
+    JAVA_STATIC_DEPS_COMMON_FLAGS="-mmacosx-version-min=10.13"
     JAVA_STATIC_DEPS_LDFLAGS="$JAVA_STATIC_DEPS_COMMON_FLAGS"
     JAVA_STATIC_DEPS_CCFLAGS="$JAVA_STATIC_DEPS_COMMON_FLAGS"
     JAVA_STATIC_DEPS_CXXFLAGS="$JAVA_STATIC_DEPS_COMMON_FLAGS"