Revert pybind11 default version back to old

Author: franzpoeschel

cmake/dependencies/pybind11.cmake

@@ -51,9 +51,9 @@ function(find_pybind11)
         mark_as_advanced(FETCHCONTENT_UPDATES_DISCONNECTED_FETCHEDpybind11)
     elseif(NOT openPMD_USE_INTERNAL_PYBIND11)
         if(openPMD_USE_PYTHON STREQUAL AUTO)
-            find_package(pybind11 3.0.0 CONFIG)
+            find_package(pybind11 2.13.0 CONFIG)
         elseif(openPMD_USE_PYTHON)
-            find_package(pybind11 3.0.0 CONFIG REQUIRED)
+            find_package(pybind11 2.13.0 CONFIG REQUIRED)
         endif()
         if(TARGET pybind11::module)
             message(STATUS "pybind11: Found version '${pybind11_VERSION}'")
@@ -67,18 +67,18 @@ set(openPMD_pybind11_src ""
     "Local path to pybind11 source directory (preferred if set)")
 
 # tarball fetcher
-set(openPMD_pybind11_tar "https://github.com/pybind/pybind11/archive/refs/tags/v3.0.2.tar.gz"
+set(openPMD_pybind11_tar "https://github.com/pybind/pybind11/archive/refs/tags/v2.13.6.tar.gz"
         CACHE STRING
         "Remote tarball link to pull and build pybind11 from if(openPMD_USE_INTERNAL_PYBIND11)")
-set(openPMD_pybind11_tar_hash "SHA256=2f20a0af0b921815e0e169ea7fec63909869323581b89d7de1553468553f6a2d"
+set(openPMD_pybind11_tar_hash "SHA256=e08cb87f4773da97fa7b5f035de8763abc656d87d5773e62f6da0587d1f0ec20"
         CACHE STRING
         "Hash checksum of the tarball of pybind11 if(openPMD_USE_INTERNAL_PYBIND11)")
 
 # Git fetcher
 set(openPMD_pybind11_repo "https://github.com/pybind/pybind11.git"
     CACHE STRING
     "Repository URI to pull and build pybind11 from if(openPMD_USE_INTERNAL_PYBIND11)")
-set(openPMD_pybind11_branch "v3.0.2"
+set(openPMD_pybind11_branch "v2.13.6"
     CACHE STRING
     "Repository branch for openPMD_pybind11_repo if(openPMD_USE_INTERNAL_PYBIND11)")