Merge pull request #518 from PSLmodels/pin-to-taxcalc653

Pin `taxcalc` version to 6.5.3 in `setup.py`

make data succeeds, tests pass, and national fingerprint test passes

Author: donboyd5

setup.py

@@ -6,7 +6,7 @@
     packages=find_packages(),
     python_requires=">=3.11,<3.14",
     install_requires=[
-        "taxcalc>=6.5.3",
+        "taxcalc==6.5.3",
         "numpy",
         "pandas>=3.0.2",
         "clarabel",