update KRATOS env var names (#1329)

Update variable names for lepton ci jobs.
The SSA credentials expired, and updating them forced the username
suffix.

Signed-off-by: Jared Wilber <[email protected]>

Author: jwilber

ci/lepton/model_convergence/configs/base.yaml

@@ -28,7 +28,7 @@ environment_variables:
   - name: KRATOS_SSA_CLIENT_ID
     value_from: KRATOS_SSA_CLIENT_ID
   - name: KRATOS_SSA_SECRET
-    value_from: KRATOS_SSA_SECRET
+    value_from: KRATOS_SSA_SECRET.jwilber
   - name: LEP_LOGIN_CREDENTIALS
     value_from: LEP_LOGIN_CREDENTIALS
   - name: HF_HOME

ci/lepton/scdl_performance/configs/scdl.yaml

@@ -29,7 +29,7 @@ environment_variables:
   - name: KRATOS_SSA_CLIENT_ID
     value_from: KRATOS_SSA_CLIENT_ID
   - name: KRATOS_SSA_SECRET
-    value_from: KRATOS_SSA_SECRET
+    value_from: KRATOS_SSA_SECRET.jwilber
   - name: LEP_LOGIN_CREDENTIALS
     value_from: LEP_LOGIN_CREDENTIALS