Clarify benchmark publication provenance

Keep the designated-workstation requirement public without exposing the private local SSH helper.

Author: AntoineRichard

docs/source/testing/micro_benchmarks.rst

@@ -464,10 +464,9 @@ For a performance claim:
    still affect total command duration.
 
 Published Isaac Lab performance comparisons must be collected on the project
-designated benchmark workstation. Maintainers with access should use the locally
-provisioned ``scripts/ssh_workstation.sh`` helper; it is not part of the public
-repository. Local runs are appropriate for correctness checks and investigation,
-but should not be presented as official reference numbers.
+designated benchmark workstation with complete hardware and run provenance.
+Local runs are appropriate for correctness checks and investigation, but should
+not be presented as official reference numbers.
 
 .. important::