feat!: update CDKTF version to `0.20.0` (#684) #619

Job	Run time
release	2m 28s
Publish to GitHub Go Module Repository	2m 37s
Publish to Maven Central	3m 37s
Publish to GitHub Releases	22s
Publish to npm	1m 18s
Publish to NuGet Gallery	1m 45s
Publish to PyPI	2m 53s
Deprecate the package in package managers if needed	19s
	15m 19s

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