Fix typo

Author: AlenkaF

ci/docker/linux-apt-python-313-freethreading.dockerfile

@@ -38,7 +38,7 @@ RUN ${ARROW_PYTHON_VENV}/bin/python -m pip install \
       --prefer-binary \
       --extra-index-url "https://pypi.anaconda.org/scientific-python-nightly-wheels/simple" \
       -r arrow/python/requirements-build.txt \
-      -r arrow/python/requirements-test.txt
+      -r arrow/python/requirements-test-3.13t.txt
 
 # We want to run the PyArrow test suite with the GIL disabled, but cffi
 # (more precisely, the `_cffi_backend` module) currently doesn't declare

ci/docker/python-free-threaded-wheel-windows-test-vs2022.dockerfile

@@ -43,7 +43,7 @@ RUN %PYTHON_CMD% -m pip install \
     --extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple \
     --pre \
     --prefer-binary \
-    -r C:/arrow/python/requirements-test.txt
+    -r C:/arrow/python/requirements-wheel-test-3.13t.txt
 
 ENV PYTHON="${python}t"
 ENV PYTHON_GIL=0