Modernize Python 2 code

[cclauss]

Remove the Python 3 syntax errors from three files.

• print() is a function in Python 3.

ruff check --ignore=ALL  # Returns the files that have syntax errors.
 
uv tool run --python=3.12 --from=future futurize --stage1 --write \
    experimental/csprofile_decode.py \
    experimental/csprofile_read.py \
    python/csreg_tc2.py

ruff check --ignore=ALL  # Make sure there are no more syntax errors.

https://python-future.org/automatic_conversion.html#stage-1-safe-fixes
https://docs.astral.sh/ruff
https://docs.astral.sh/ruff/linter

@algrant-arm