DD_PROFILING_TIMELINE_ENABLED got lost in the rework (#6264)

Author: szegedi

packages/dd-trace/src/supported-configurations.json

@@ -129,6 +129,7 @@
     "DD_PROFILING_HEAP_ENABLED": ["A"],
     "DD_PROFILING_PROFILERS": ["A"],
     "DD_PROFILING_SOURCE_MAP": ["A"],
+    "DD_PROFILING_TIMELINE_ENABLED": ["A"],
     "DD_PROFILING_UPLOAD_PERIOD": ["A"],
     "DD_PROFILING_V8_PROFILER_BUG_WORKAROUND": ["A"],
     "DD_PROFILING_WALLTIME_ENABLED": ["A"],