ControlTest: reduce verbosity of ProxyProviderSvc test

Make ProxyProviderSvc unit test less verbose to protect against printout changes in Gaudi v39r4.

Build area was cleaned as per request posted in the DB. The full software build will be performed

This merge request affects 1 package:

• AtlasTest/ControlTest

This merge request affects 2 files:

• AtlasTest/ControlTest/share/ProxyProviderSvc_test.ref
• AtlasTest/ControlTest/share/ProxyProviderSvc_test.txt

added Test main review-pending-level-1 labels

CI Result SUCCESS (hash 6a98309f)

	Athena
externals
cmake
make
tests

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Changes are fine and Ci succeeds, approving for L1. -L1

added review-approved label and removed review-pending-level-1 label

mentioned in commit e584e027

merged