CI: increase UE thread pool size

There seem to be randomly occurring deadlocks when running the UE in the
CI. MR !3091 should fix this. While waiting for this, apply a workaround
by increasing the number of worker pools in the UE to 12.

ci-scripts/conf_files/nrue.uicc.conf

@@ -6,6 +6,8 @@ uicc0 = {
   nssai_sst=1;
 }
 
+thread-pool = "-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1"
+
 #/* configuration for channel modelisation */
 #/* To be included in main config file when */
 #/* channel modelisation is used (rfsimulator with chanmod options enabled) */

ci-scripts/conf_files/nrue.uicc.yaml

@@ -5,6 +5,8 @@ uicc0:
   dnn: oai
   nssai_sst: 1
 
+thread-pool: "-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1"
+
 #/* configuration for channel modelisation */
 #/* To be included in main config file when */
 #/* channel modelisation is used (rfsimulator with chanmod options enabled) */

ci-scripts/conf_files/ue.sa.conf

@@ -6,3 +6,5 @@ uicc0 = {
   nssai_sst=1;
   nssai_sd=66051;
 }
+
+thread-pool = "-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1"