CI: Adjust timing thresholds in timing-phytest pipeline

CI test sometimes fails because measured value is lower than allowed
threshold.

ci-scripts/datalog_rt_stats.1x1.60.yaml

@@ -10,7 +10,7 @@ Ref :
   feprx : 46.0
   feptx_prec : 15.0
   feptx_ofdm : 35.0
-  feptx_total : 57.0
+  feptx_total : 50.0
   L1 Tx processing : 260.0
   DLSCH encoding : 160.0
   L1 Rx processing : 420.0

ci-scripts/datalog_rt_stats.default.yaml

@@ -10,7 +10,7 @@ Ref :
   feprx : 43.0
   feptx_prec : 13.0
   feptx_ofdm : 33.0
-  feptx_total : 55.0
+  feptx_total : 50.0
   L1 Tx processing : 200.0
   DLSCH encoding : 100.0
   L1 Rx processing : 330.0