[PROF-7654] Bump libdatadog dependency to version 3 #2948
Merged
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What does this PR do?:
This PR bumps the libdatadog dependency on dd-trace-rb to version 3 (specifically, '~> 3.0.0.1.0').
It also includes small changes to code/tests to adapt to changes in libdatadog and get a green CI.
Motivation:
Libdatadog 3 includes the new "internal metadata" feature which we'll use in #2927.
Additional Notes:
Despite the jump in major version, the changes between libdatadog 2 and 3 were minimal. The version was bumped because the library is following semantic versioning, and a public API was changed.
How to test the change?:
Running the profiling specs exercises libdatadog, and thus we have quite a lot of test coverage for it.