Requires update for Defold 1.9.8

[aglitchman]

The extension is not buildable on Defold 1.9.8 BETA:

/defold-simpledata/commonsrc/simpledata_ddf.proto
	Line 3: Import ddf/ddf_extensions.proto is unused.
	Line 5: Import script/ddf_script.proto is unused.
Traceback (most recent call last):
  File "/var/extender/sdk/36a63db66b67da8a85ac4478a7b3acd2472b855e/defoldsdk//bin/ddfc.py", line 29, in <module>
    import dlib
  File "/var/extender/sdk/36a63db66b67da8a85ac4478a7b3acd2472b855e/defoldsdk/lib/python/dlib/__init__.py", line 46, in <module>
    dlib = ctypes.cdll.LoadLibrary(os.path.join(os.environ['DYNAMO_HOME'], libdir, libname))
  File "/usr/lib/python3.8/ctypes/__init__.py", line 451, in LoadLibrary
    return self._dlltype(name)
  File "/usr/lib/python3.8/ctypes/__init__.py", line 373, in __init__
    self._handle = _dlopen(self._name, mode)
	Line 5: OSError: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by /var/extender/sdk/36a63db66b67da8a85ac4478a7b3acd2472b855e/defoldsdk/lib/x86_64-linux/libdlib_shared.so)
	Line 5: --ddf_out: protoc-gen-ddf: Plugin failed with status code 1.
	Line 5: com.defold.extender.ExtenderException: java.io.IOException: /var/extender/sdk/36a63db66b67da8a85ac4478a7b3acd2472b855e/defoldsdk//ext/bin/x86_64-linux/protoc --plugin=protoc-gen-ddf=/var/extender/sdk/36a63db66b67da8a85ac4478a7b3acd2472b855e/defoldsdk//bin/ddfc_cxx --ddf_out=/tmp/job7363885552552605026/build/defold-simpledata -Ibuild/defold-simpledata/ -Iupload/  -I/var/extender/sdk/36a63db66b67da8a85ac4478a7b3acd2472b855e/defoldsdk//share/proto -I/var/extender/sdk/36a63db66b67da8a85ac4478a7b3acd2472b855e/defoldsdk//ext/include  upload/defold-simpledata/commonsrc/simpledata_ddf.proto
[libprotobuf WARNING google/protobuf/compiler/parser.cc:645] No syntax specified for the proto file: defold-simpledata/commonsrc/simpledata_ddf.proto. Please use 'syntax = "proto2";' or 'syntax = "proto3";' to specify a syntax version. (Defaulted to proto2 syntax.)

[ekharkunov]

Will be fixed in defold/extender#605.