fix(matter): exclude CI failing incompatible targets

Author: SuGlider

idf_component_examples/Arduino_ESP_Matter_over_OpenThread/ci.yml

@@ -2,7 +2,6 @@ targets:
   esp32s2: false
   esp32s3: false
   esp32c2: false
-  esp32c3: false
   esp32p4: false
 requires:
   - CONFIG_OPENTHREAD_ENABLED=y