Require taxcalc 6.5.3 or higher

[martinholmer]

No changes in generated TMD data; just one test change wrt OBBBA senior deduction.
Will be merged after taxcalc 6.5.3 package is available for download.

[donboyd5]

@martinholmer, verified locally and the change looks good to me -- ready to merge once taxcalc 6.5.3 package is available for download.

I did the following:

• Checked out PR 511's taxcalc-653 branch.
• Installed Tax-Calculator from PR #3015's 6-5-3 branch (pip install git+https://github.com/martinholmer/Tax-Calculator.git@6-5-3) so I had taxcalc 6.5.3 in my venv.
• Ran pytest tests/test_imputed_variables.py -m obbba_deduction -v against the existing tmd/storage/output/tmd.csv.gz (generated previously, unchanged by this PR).

Result
test_obbba_deduction_tax_benefits passes with the updated 2022 expected values (exp_totben_2022=58.89, exp_affpct_2022=28.24, exp_affben_2022=1065). The new numbers are consistent with the per-person phase-out of the OBBBA senior deduction introduced in Tax-Calculator PR #3014.

Merge compatibility
A three-way merge test of this branch against current master (which now includes the recently merged area-weights documentation PR #512) is clean — PR 511's edits to the numbered list in README.md and PR 512's appended "Sub-national area weights" section don't overlap.

One minor note
The PR title and description focus on the taxcalc 6.5.3 requirement, but the diff also includes a small unrelated workflow change: adding clean format lint as prerequisites to the make data target and removing the now-redundant "run make clean first" step from the README. That seems sensible to me (since make data now runs clean itself), just flagging it for informational purposes.

[donboyd5]

Looks good to me. Please see comments in main conversation.

[martinholmer]

@donboyd5, Thanks for checking PR #511 on your computer.

[donboyd5]

@donboyd5, Thanks for checking PR #511 on your computer.

Gladly!

[donboyd5]

taxcalc 6.5.3 was released in PR 3015