gnu: Pin old pybind11 version.

* gnu/packages/python-xyz.scm (pybind11): Move definition to (pybind11-2).
(python-awkward-cpp, python-contourpy, python-hnswlib, python-dm-tree,
python-matplotlib, python-pikepdf, python-optree, python-fusepy): Change
reference to pybind11-2.

* gnu/packages/astronomy.scm (aoflagger, python-galsim, python-pyclp),
  gnu/packages/bioinformatics.scm (python-metacells, python-strawc,
  python-coolbox, python-pyspoa, python-scvelo),
  gnu/packages/chemistry.scm (avogadrolibs),
  gnu/packages/computer-architecture.scm (gem5),
  gnu/packages/duckdb.scm (python-duckdb),
  gnu/packages/electronics.scm (nextpnr, prjtrellis),
  gnu/packages/engineering.scm (python-orocos-kinematics-dynamics),
  gnu/packages/geo.scm (ogs-serial),
  gnu/packages/graphics.scm (openshadinglanguage, openimageio),
  gnu/packages/image-processing.scm (opencolorio),
  gnu/packages/machine-learning.scm (python-fasttext, python-ml-dtypes, onnx,
  onnx-optimizer, onnxruntime, dlib, tensorflow-lite, tensorpipe,
  python-pytorch, python-torchvision, python-ctranslate2, python-hmmlearn,
  python-dlib),
  gnu/packages/maths.scm (python-accupy, python-ducc0),
  gnu/packages/networking.scm (libcamera),
  gnu/packages/opencl.scm (python-pyopencl),
  gnu/packages/package-management.scm (python-libmambapy),
  gnu/packages/physics.scm (python-brille, python-gofit),
  gnu/packages/python-check.scm (python-xdoctest),
  gnu/packages/python-science.scm (pyre, python-boost-histogram, python-cvxpy,
  python-iminuit, python-osqp, python-pyamg, python-qdldl,
  python-scikit-build-core, python-scipy, python-vaex-core, python-pyfma),
  gnu/packages/radio.scm (gnuradio, gr-osmosdr, gr-dsd, gr-iqbal,
  gr-satellites, limesuite-ng),
  gnu/packages/simulation.scm (fenics, python-dolfin-adjoint),
  gnu/packages/statistics.scm (python-diptest, python-george),
  gnu/packages/syndication.scm (syndication-domination): Change reference to pybind11-2.

Change-Id: Ib6abc8580fc2b4c35172f251ff6ba7d80ced4b7b
Signed-off-by: Gabriel Wicki <gabriel@erlikon.ch>

gnu/packages/python-xyz.scm

@@ -542,7 +542,7 @@ compare against a vast section of other version formats.")
     ;; tests: 22304 passed, 524 skipped
     (native-inputs
      (list cmake-minimal
-           pybind11
+           pybind11-2
            python-pytest
            python-scikit-build-core))
     (propagated-inputs
@@ -3374,7 +3374,7 @@ into dataclasses.")
               ;; Tests that pass but avoided for load reasons.
               "-k" "not test_filled_random_big and not test_lines_random_big")))
     (native-inputs
-     (list pybind11
+     (list pybind11-2
            python-meson
            python-pytest
            python-wurlitzer))
@@ -5483,7 +5483,7 @@ interface utility to parse @url{https://hjson.github.io/, HJSON}) documents.")
                 ((", '-march=native'")
                  "")))))))
     (native-inputs
-     (list pybind11
+     (list pybind11-2
            python-pytest
            python-setuptools))
     (propagated-inputs
@@ -9242,7 +9242,7 @@ browser.")
     (native-inputs
      (list python-setuptools))
     (inputs
-     (list pybind11
+     (list pybind11-2
            static-abseil-cpp
            python))
     (propagated-inputs
@@ -12075,7 +12075,7 @@ comparison.
     (native-inputs
      (list pkg-config
            python-meson
-           pybind11
+           pybind11-2
            python-pytest
            python-pytest-timeout
            python-pytest-xdist
@@ -12812,7 +12812,7 @@ Python list with elements of type @code{PIL.Image} (from the
         (base32 "0hpnb63xp8yaflah3i1z5azh6mg36rz0liy27km47417w2q72v0c"))))
     (build-system pyproject-build-system)
     (native-inputs
-     (list pybind11
+     (list pybind11-2
            python-attrs
            python-hypothesis
            python-setuptools-scm
@@ -14588,7 +14588,7 @@ connect strings, then issue SQL commands within IPython or IPython Notebook.")
            python-setuptools
            python-wheel
            cmake-minimal
-           pybind11))
+           pybind11-2))
     (home-page "https://github.com/metaopt/optree")
     (synopsis "Optimized PyTree Utilities")
     (description "This package contains operations on PyTrees (a tree made of
@@ -26645,7 +26645,7 @@ commit, but it also includes some other useful statistics.")
 binding is created using the standard @code{ctypes} library.")
     (license license:isc)))
 
-(define-public pybind11
+(define-public pybind11-2
   (package
     (name "pybind11")
     (version "2.13.6")