remove pip install black

Author: astuyve

scripts/check_format.sh

@@ -1,9 +1,6 @@
 #!/bin/sh
 set -e
 
-PYTHON_VERSION=$(python -c 'import sys; print(sys.version_info.major)')
-pip install -Iv black==25.11.0
-
 python -m black --check datadog_lambda/ --diff
 python -m black --check tests --diff