typo in yaml file

Author: askuric

.github/workflows/ccpp.yml

@@ -57,7 +57,7 @@ jobs:
 
           - arduino-boards-fqbn: STMicroelectronics:stm32:GenF4:pnum=GENERIC_F405RGTX  # stm32f405 - odrive
             platform-url: https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json 
-            sketch-names: odrive_example_encoder.ino odrive_example_spi.ino
+            sketch-names: odrive_example_encoder.ino, odrive_example_spi.ino
 
           - arduino-boards-fqbn: STMicroelectronics:stm32:Nucleo_64:pnum=NUCLEO_F411RE # nucleo one full example
             platform-url: https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json