bump pandas tests to run on 3.12

Author: davidhewitt

tests/requirements.txt

@@ -2,7 +2,7 @@ coverage==7.2.7
 dirty-equals==0.6.0
 hypothesis==6.79.4
 # pandas doesn't offer prebuilt wheels for all versions and platforms we test in CI e.g. aarch64 musllinux
-pandas==2.0.3; python_version >= "3.9" and python_version < "3.12" and implementation_name == "cpython" and platform_machine == 'x86_64'
+pandas==2.1.3; python_version >= "3.9" and python_version < "3.13" and implementation_name == "cpython" and platform_machine == 'x86_64'
 pytest==7.4.3
 # we run codspeed benchmarks on x86_64 CPython (i.e. native github actions architecture)
 pytest-codspeed~=2.2.0; implementation_name == "cpython" and platform_machine == 'x86_64'
@@ -13,5 +13,5 @@ pytest-pretty==1.2.0
 pytest-timeout==2.2.0
 pytz==2023.3.post1
 # numpy doesn't offer prebuilt wheels for all versions and platforms we test in CI e.g. aarch64 musllinux
-numpy==1.25.2; python_version >= "3.9" and python_version < "3.12" and implementation_name == "cpython" and platform_machine == 'x86_64'
+numpy==1.26.2; python_version >= "3.9" and python_version < "3.13" and implementation_name == "cpython" and platform_machine == 'x86_64'
 exceptiongroup==1.1; python_version < "3.11"