feat(java): activate all 17 FFE eval metric tests on v1.62.0

Removes all remaining bug (FFL-1972) annotations. All 17 tests will
pass on v1.62.0 once the following dd-trace-java PRs ship:
- #11040: core eval metrics implementation (10 tests)
- #11037: STATIC/SPLIT reason (test_ffe_eval_metric_basic, test_ffe_eval_reason_split)
- #11036: type mismatch / parse error (3 tests)
- #11071: invalid regex parse error (1 test)
- #11072: metric count (1 test)

Supersedes #6717, #6718, #6723.

Author: typotter

manifests/java.yml

@@ -3076,15 +3076,6 @@ manifest:
         spring-boot: v1.56.0
   tests/ffe/test_exposures.py::Test_FFE_EXP_5_Missing_Targeting_Key: bug (FFL-1729)
   tests/ffe/test_flag_eval_metrics.py: v1.62.0-SNAPSHOT+42f154d2
-  tests/ffe/test_flag_eval_metrics.py::Test_FFE_Eval_Metric_Basic::test_ffe_eval_metric_basic: bug (FFL-1972)
-  tests/ffe/test_flag_eval_metrics.py::Test_FFE_Eval_Metric_Count::test_ffe_eval_metric_count: bug (FFL-1972)
-  tests/ffe/test_flag_eval_metrics.py::Test_FFE_Eval_Metric_Numeric_To_Integer::test_ffe_eval_metric_numeric_to_integer: bug (FFL-1972)
-  ? tests/ffe/test_flag_eval_metrics.py::Test_FFE_Eval_Metric_Parse_Error_Invalid_Regex::test_ffe_eval_metric_parse_error_invalid_regex
-  : bug (FFL-1972)
-  ? tests/ffe/test_flag_eval_metrics.py::Test_FFE_Eval_Metric_Parse_Error_Variant_Type_Mismatch::test_ffe_eval_metric_parse_error_variant_type_mismatch
-  : bug (FFL-1972)
-  tests/ffe/test_flag_eval_metrics.py::Test_FFE_Eval_Metric_Type_Mismatch::test_ffe_eval_metric_type_mismatch: bug (FFL-1972)
-  tests/ffe/test_flag_eval_metrics.py::Test_FFE_Eval_Reason_Split::test_ffe_eval_reason_split: bug (FFL-1972)
   tests/integration_frameworks/llm/anthropic/test_anthropic_llmobs.py::TestAnthropicLlmObsMessages::test_create_error: bug (MLOB-1234)
   tests/integration_frameworks/llm/openai/test_openai_apm.py: v1.61.0
   tests/integration_frameworks/llm/openai/test_openai_llmobs.py: v1.61.0