[BEAM-10935] Replace @abstractproperty with @abstractmethod

[yukihira1992]

Replace deprecated @abstractproperty with @abstractmethod and @property since Python2 is no longer supported.
https://docs.python.org/3/library/abc.html#abc.abstractproperty

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Post-Commit Tests Status (on master branch)

Lang	SDK	Dataflow	Flink	Samza	Spark	Twister2
Go		---		---		---
Java
Python				---		---
XLang		---		---		---

Pre-Commit Tests Status (on master branch)

---	Java	Python	Go	Website	Whitespace	Typescript
Non-portable
Portable	---		---	---	---	---

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GitHub Actions Tests Status (on master branch)

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[yukihira1992]

R: @robertwb

[codecov]

Codecov Report

Merging #12887 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master   #12887   +/-   ##
=======================================
  Coverage   82.40%   82.40%           
=======================================
  Files         454      454           
  Lines       54345    54346    +1     
=======================================
+ Hits        44783    44784    +1     
  Misses       9562     9562           

Impacted Files	Coverage Δ
sdks/python/apache_beam/io/filesystemio.py	96.82% <100.00%> (+0.02%)	⬆️
...hon/apache_beam/runners/direct/test_stream_impl.py	93.38% <0.00%> (-0.74%)	⬇️
sdks/python/apache_beam/transforms/util.py	95.44% <0.00%> (-0.19%)	⬇️
...hon/apache_beam/runners/worker/bundle_processor.py	94.31% <0.00%> (ø)
...ks/python/apache_beam/runners/worker/sdk_worker.py	88.80% <0.00%> (+0.17%)	⬆️
...eam/runners/portability/fn_api_runner/fn_runner.py	89.74% <0.00%> (+0.20%)	⬆️

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[robertwb]

Thanks.