Add missing to_type_hint to WindowedValueCoder (#33403) #30867

Job	Run time
Check environment variables	17s
Build python source distribution	1m 0s
Prepare GCS	8s
Build python cp39- wheels on auto for ubuntu-20.04	2m 43s
Build python cp310- wheels on auto for ubuntu-20.04	2m 46s
Build python cp311- wheels on auto for ubuntu-20.04	2m 47s
Build python cp312- wheels on auto for ubuntu-20.04	2m 44s
Build python cp39- wheels on auto for macos-13	3m 7s
Build python cp310- wheels on auto for macos-13	3m 6s
Build python cp311- wheels on auto for macos-13	2m 35s
Build python cp312- wheels on auto for macos-13	3m 6s
Build python cp39- wheels on auto for windows-latest	2m 57s
Build python cp310- wheels on auto for windows-latest	2m 58s
Build python cp311- wheels on auto for windows-latest	2m 58s
Build python cp312- wheels on auto for windows-latest	2m 59s
Build python cp39- wheels on aarch64 for ubuntu-20.04	2m 47s
Build python cp310- wheels on aarch64 for ubuntu-20.04	2m 27s
Build python cp311- wheels on aarch64 for ubuntu-20.04	2m 44s
Build python cp312- wheels on aarch64 for ubuntu-20.04	2m 43s
Upload python source distribution to GCS bucket	12s
Branch repo nightly	1s
Upload wheels to GCS bucket	1s
List files on Google Cloud Storage Bucket	1s
	47m 7s

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