Patch mac python to use the latest version of sphinx

Signed-off-by: Steve Pham <[email protected]>

package-system/python/darwin_x64/make-python.sh

@@ -104,7 +104,7 @@ PYTHONNOUSERSITE=1
 echo ""
 echo "---------------- Installing spinx documentation tool into the v-env ----------------"
 echo ""
-$VENV_BIN_DIR/python3 -m pip install sphinx==3.4.3
+$VENV_BIN_DIR/python3 -m pip install sphinx
 
 
 cd $RELOC_SRC_DIR

package-system/python/darwin_x64/open3d_python.patch

@@ -104,3 +104,24 @@ index 8f33537..dad3d0c 100755
 
      rsrcDir = os.path.join(pkgroot, 'Resources')
 
+diff --git a/Doc/requirements.txt b/Doc/requirements.txt
+index f43ce2c..2578393 100644
+--- a/Doc/requirements.txt
++++ b/Doc/requirements.txt
+@@ -3,13 +3,13 @@
+ # Sphinx version is pinned so that new versions that introduce new warnings
+ # won't suddenly cause build failures. Updating the version is fine as long
+ # as no warnings are raised by doing so.
+-sphinx==3.4.3
++sphinx
+ # Docutils version is pinned to a version compatible with Sphinx
+ # version <3.5.4. It can be removed after bumping Sphinx version to at
+ # least 3.5.4.
+-docutils==0.17.1
++docutils
+ # Jinja version is pinned to a version compatible with Sphinx version <4.5.
+-jinja2==3.0.3
++jinja2
+
+ blurb
+