ci: increase parallel job count for S2 unit tests

tools/ci/config/target-test.yml

@@ -596,7 +596,7 @@ UT_034:
 
 UT_035:
   extends: .unit_test_s2_template
-  parallel: 42
+  parallel: 43
   tags:
     - ESP32S2_IDF
     - UT_T1_1