fix

Author: lucasssvaz

.github/workflows/push.yml

@@ -128,7 +128,7 @@ jobs:
                   # If file is in a src directory, find all sketches in the parent/examples directory
                   echo "Library src file found: $file"
                   lib=$(dirname $(dirname $file))
-                  lib_sketches+=$(find $lib/examples -name *.ino)
+                  lib_sketches=$(find $lib/examples -name *.ino)
                   sketches+="$lib_sketches "
                   echo "Library sketches: $lib_sketches"
               else