Update function-schemata sub-module to HEAD (97ea4cd)

New changes:

• 7b8fd19 Re-order stages so OSV doesn't blow up pipeline.
• 8e8ee34 definitions: Fold Z1229/zh-classical into Z1152/lzh, delete the former
• 36ba06f definitions: Re-label Z46 and Z64 as Type converters for clarity
• 32e3677 serialize: Avoid all use of 'derializer' confusing term
• 2be36a8 test_data: Avoid '(de)serializer' term in test comments
• 9015883 tests: Rename test file and internal variables
• 97ea4cd serialize: Rename convertNormalForBinaryFormat and recoverNormalFromBinaryFormat

Bug: T348370
Bug: T353354