Revert ".github/workflows: set version"

This reverts commit dbabb54.

Author: mrjbq7

.github/workflows/wheels.yml

@@ -8,7 +8,7 @@ on:
 
 env:
   TALIB_C_VER: 0.6.4
-  TALIB_PY_VER: 0.6.5
+  TALIB_PY_VER: ${{ github.ref_name }}
   PIP_NO_VERIFY: 0
   PIP_VERBOSE: 1
   CIBW_BEFORE_BUILD: pip install -U setuptools Cython wheel meson-python ninja && pip install -U numpy