Update zlib to 1.3.1

[fxcoudert]

Released January 22, 2024

[fxcoudert]

No idea why this fails on Windows. Millions of lines like this:

Thu Dec 21 00:22:55 CUT 2023
buildkite processes:
    69740       0       0       4204  ?              0 00:18:43 C:\buildkite-agent\bin\buildkite-agent.exe
    67784       0       0       2248  ?              0 00:22:55 C:\buildkite-agent\bin\buildkite-agent.exe
buildkite variables:
BUILDKITE_AGENT_ID=018c89bd-2840-4d3d-8a77-baa559f10c50
BUILDKITE_BUILD_ID=018c89a8-f8bd-4ada-be5d-0e0f03a88b8f
BUILDKITE_GROUP_ID=018c89a9-5a53-4d41-aae5-bbfd6181ca19
BUILDKITE_JOB_ID=018c89a9-9a70-4e4b-b8c8-6e2395b3f3a7
BUILDKITE_PIPELINE_ID=53de1ea5-6dd3-4008-b976-161c9f34b0ad
BUILDKITE_REBUILT_FROM_BUILD_ID=
BUILDKITE_STEP_ID=018c89a9-9a1b-40d9-bcf6-1c65c4799375
BUILDKITE_TRIGGERED_FROM_BUILD_ID=
    set | grep -i 'BUILDKITE_.*_ID=' | log;
BUILDKITE_AGENT_PID=4204
    set | grep -i 'BUILDKITE_AGENT_PID' | log;
BUILDKITE_BUILD_NUMBER=31385
    set | grep -i 'BUILDKITE_BUILD_NUMBER' | log;
win2k22-amdci6-1

Even the date is wrong :(