[cmake] Refacotred python requirement of TESPy.

Maybe removed later on:

https://github.com/oemof/tespy/issues/252

CMakeLists.txt

@@ -229,8 +229,12 @@ include(UnityBuildSettings)
 if(POETRY)
     file(STRINGS ${PROJECT_BINARY_DIR}/.python_packages OGS_PYTHON_PACKAGES)
     list(REMOVE_DUPLICATES OGS_PYTHON_PACKAGES)
+    # Hack for tespy requirement
+    if(${Python3_VERSION} VERSION_LESS 3.10)
+        set(_python_arg --python <3.9)
+    endif()
     execute_process(
-        COMMAND ${_CMD_COMMAND} poetry add ${OGS_PYTHON_PACKAGES}
+        COMMAND ${_CMD_COMMAND} poetry add ${_python_arg} ${OGS_PYTHON_PACKAGES}
         WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
     )
 endif()

ProcessLib/HeatTransportBHE/Tests.cmake

@@ -92,7 +92,7 @@ if("${Python3_VERSION}" VERSION_LESS 3.9)
         WRAPPER time
         TESTER vtkdiff
         REQUIREMENTS OGS_USE_PYTHON AND NOT OGS_USE_MPI
-        PYTHON_PACKAGES "TESPy=0.3.2 --python \">=3.6,<3.9\""
+        PYTHON_PACKAGES "TESPy=0.3.2"
         DIFF_DATA
         3bhes_1U_ts_10_t_600.000000.vtu 3bhes_1U_ts_10_t_600.000000.vtu temperature_soil temperature_soil 1e-12 1e-13
         3bhes_1U_ts_10_t_600.000000.vtu 3bhes_1U_ts_10_t_600.000000.vtu temperature_BHE1 temperature_BHE1 1e-10 1e-13

scripts/python/pyproject.in.toml

@@ -5,7 +5,7 @@ description = "CMake auto-generated"
 authors = [""]
 
 [tool.poetry.dependencies]
-python = "^@ogs.minimum_version.python@"
+python = ">=@ogs.minimum_version.python@"
 
 [tool.poetry.dev-dependencies]