Fix type

Dockerfile.buster

@@ -49,7 +49,7 @@ RUN  sed -i 's/pip==.*/pip==24.0/g' requirements.txt \
   && sed -i 's/bcrypt==.*/bcrypt==4.1.3/g' requirements.txt \
   && sed -i 's/Pillow==.*/Pillow==9.5.0/g' requirements.txt \
   && sed -i 's/numpy==.*/numpy==1.21.4/g' requirements.txt \
-  && sed -i 's/opencv-python-headles==.*/opencv-python-headless==4.6.0.66/g' requirements.txt \
+  && sed -i 's/opencv-python-headless==.*/opencv-python-headless==4.6.0.66/g' requirements.txt \
   && sed -i 's/gpiozero==.*/gpiozero==1.6.2/g' requirements.txt \
   && sed -i 's/requests==.*/requests==2.31.0/g' requirements.txt \
   && sed -i 's/python-kasa==.*/python-kasa==0.5.1/g' requirements.txt \