Pull Request validation tests

Update gemspec to pull ffi >=1.17.0 irrespective of ruby version as Infra Client 18 needs it at 1.17.0

Failed in 7m 5s
run-lint-and-specs-ruby-3.0.expeditor/run_linux_tests.sh rake
Waited 2m 34s
·
Ran in 1m 47s
run-lint-and-specs-ruby-3.0.expeditor/run_linux_tests.sh rake
Waited 3s
·
Ran in 1m 21s
run-lint-and-specs-ruby-3.1.expeditor/run_linux_tests.sh rake
Waited 2m 34s
·
Ran in 2m 12s
run-lint-and-specs-ruby-3.1.expeditor/run_linux_tests.sh rake
Waited 3s
·
Ran in 1m 37s
Total Job Run Time: 7m 45s