Update backends/arm/test/TARGETS

Co-authored-by: Digant Desai <[email protected]>

Author: Erik-Lundell

backends/arm/test/TARGETS

@@ -63,7 +63,7 @@ runtime.python_library(
         "//executorch/backends/arm/quantizer:lib",
         "//executorch/backends/arm/tosa:mapping",
         "//executorch/backends/arm:vgf",
-        "//executorch/backends/arm:_factory"
+        "//executorch/backends/arm:_factory",
         "//executorch/devtools/backend_debug:delegation_info",
         "//executorch/exir/backend:operator_support",
         "fbsource//third-party/pypi/tabulate:tabulate",