use latest PSF commit that "improve parallel execution: increase task batch size"

4b225b3ea6d989873839a456ee305852853265e9

Author: c-southwest

install.sh

@@ -8,7 +8,7 @@ readonly SCRIPT_DIR
 readonly PATCHES_DIR="${SCRIPT_DIR}/experiments/patches"
 
 
-readonly PROTOCOLSTATEFUZZER_COMMIT="30661af86aefabae5e58db658845a5736143ddc3"
+readonly PROTOCOLSTATEFUZZER_COMMIT="4b225b3ea6d989873839a456ee305852853265e9"
 readonly PROTOCOLSTATEFUZZER_REP_URL="https://github.com/c-southwest/protocol-state-fuzzer.git"
 readonly PROTOCOLSTATEFUZZER_FOLDER="ProtocolState-Fuzzer"