Update dependency com.google.auth:google-auth-library-oauth2-http to v1.43.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
com.google.auth:google-auth-library-oauth2-http	1.41.0 → 1.43.0

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Release Notes

googleapis/google-auth-library-java (com.google.auth:google-auth-library-oauth2-http)

v1.43.0

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Features

• Next release from main branch is 1.43.0 (#​1887) (bec0ece)

Bug Fixes

• Deserialization checks valid class types for HttpTransportFactory (#​1882) (76ff74e)

v1.42.1

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Bug Fixes

• Mark GdchCredentialsTestUtil test util class as public (#​1877) (1868969)

v1.42.0

Compare Source

Features

• Update protobuf version to 4.33.2 (#​1875) (13ddbd1)

Bug Fixes

• Simplify call to directly retrieve the default service account from MDS (#​1844) (6efda0b)

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