Package libdatadog 0.8.0 for Ruby

[ivoanjo]

What does this PR do?

• Update the needed versions and hashes to package libdatadog 0.8.0 for Ruby
• Updates a few hardcoded file names to the new names adopted for 0.8.0

I'm following along the checklist at
https://github.com/DataDog/libdatadog/blob/main/ruby/README.md#releasing-a-new-version-to-rubygemsorg.

Motivation

Use latest release for Ruby profiling.

How to test the change?

I've gone ahead and updated the Ruby profiler to use this version in https://github.com/DataDog/dd-trace-rb/tree/ivoanjo/upgrade-to-libdatadog-0.8.0 . I am able to run the Ruby profiler test suite both on macOS as well as on Linux with the new release.

To reproduce my results, you need to do the following:

• Check out this PR
• Build the packages locally: cd ruby && bundle exec rake package
• Check out dd-trace-rb
• Change to the branch I mentioned above
• Copy the ruby/pkg/libdatadog-0.8.0.1.0.gem that is generated by packaging to the root of the dd-trace-rb repository
• Open the dd-trace-rb docker dev environment: docker-compose run --rm tracer-2.7 /bin/bash
• Manually install the gem: gem install libdatadog-0.8.0.1.0.gem
• Install other dependencies: bundle install
• Run the profiler test suite: bundle exec rake clean compile && bundle exec rspec spec/datadog/profiling

[sanchda]

Observation checklist:

• Updates hashes
• Refactors variable names
• References to ddprof_ffi_with_rpath are changed to datadog_profiling_with_rpath

I didn't check the hashes, but otherwise LGTM!