Update qm from 5.1.3 to 5.2.3

Author: peterpolidoro

README.org

@@ -25,7 +25,7 @@ https://www.state-machine.com/arduino
 - Description: QP real-time embedded framework for Arduino (ARM Cortex-M)
 - Version: 6.9.6
 - qpcpp version: 6.9.3
-- qm version: 5.1.3
+- qm version: 5.2.3
 - qtools version: 6.9.3
 - Release Date: 2025-03-14
 - Creation Date: 2017-01-30
@@ -192,10 +192,10 @@ Or it may be downloaded and installed on the command line:
 
 #+BEGIN_SRC sh
 cd ~ && rm -rf qp && mkdir qp && cd qp
-curl -OL https://github.com/QuantumLeaps/qm/releases/download/v5.1.3/qm_5.1.3-linux64.zip
-unzip qm_5.1.3-linux64.zip && rm qm_5.1.3-linux64.zip && mv qm qm-5.1.3
-chmod u+x qm-5.1.3/bin/qm && chmod u+x qm-5.1.3/bin/qm.sh
-alias qm='~/qp/qm-5.1.3/bin/qm.sh'
+curl -OL https://github.com/QuantumLeaps/qm/releases/download/v5.2.3/qm_5.2.3-linux64.zip
+unzip qm_5.2.3-linux64.zip && rm qm_5.2.3-linux64.zip && mv qm qm-5.2.3
+chmod u+x qm-5.2.3/bin/qm && chmod u+x qm-5.2.3/bin/qm.sh
+alias qm='~/qp/qm-5.2.3/bin/qm.sh'
 #+END_SRC
 
 ** QTools