Update tpls/cpr submodule to fix a hang on ALL_SANITIZERS_AVAILABLE when building a container

[annagrin]

Fixes issue #2411

Description

Recently we have seen a hang (and eventually an OOM) when building a container, for example, using the following command:

➜  cuda-quantum git:(run-integration-test-in-ci)  docker build --build-arg install="CMAKE_BUILD_TYPE=Release CUDA_QUANTUM_VERSION=cu12-1"   --file docker/build/cudaq.dev.Dockerfile .
2025/06/09 12:52:39 in: []string{}
2025/06/09 12:52:39 Parsed entitlements: []
[+] Building 315.2s (8/9)                                                                                docker:default
 => [internal] load build definition from cudaq.dev.Dockerfile                                                     0.0s
 => => transferring dockerfile: 2.79kB                                                                             0.0s
 => [internal] load metadata for ghcr.io/nvidia/cuda-quantum-devdeps:ext-cu12.0-gcc11-main                         0.2s
 => [internal] load .dockerignore                                                                                  0.0s
 => => transferring context: 2B                                                                                    0.0s
 => [internal] load build context                                                                                  0.3s
 => => transferring context: 1.79MB                                                                                0.3s
 => [1/5] FROM ghcr.io/nvidia/cuda-quantum-devdeps:ext-cu12.0-gcc11-main@sha256:feb8a175d3796fe9651f9250e312a218f  0.0s
 => CACHED [2/5] ADD . /workspaces/cuda-quantum                                                                    0.0s
 => CACHED [3/5] WORKDIR /workspaces/cuda-quantum                                                                  0.0s
 => CACHED [4/5] RUN if [ -n "" ];     then         if [ ! -z "/usr/local/openmpi" ]; then             echo "Usin  0.0s
 => [5/5] RUN if [ -n "CMAKE_BUILD_TYPE=Release CUDA_QUANTUM_VERSION=cu12-1" ];     then         expected_prefi  314.6s
 => => # -- Performing Test ADDRESS_SANITIZER_AVAILABLE - Success
 => => # -- Performing Test LEAK_SANITIZER_AVAILABLE
 => => # -- Performing Test LEAK_SANITIZER_AVAILABLE - Success
 => => # -- Performing Test UNDEFINED_BEHAVIOUR_SANITIZER_AVAILABLE
 => => # -- Performing Test UNDEFINED_BEHAVIOUR_SANITIZER_AVAILABLE - Success
 => => # -- Performing Test ALL_SANITIZERS_AVAILABLE

The process tree shows a part of hyperv growing in memory:

Which seems to be caused by the following issue:

libcpr/cpr#1204

To fix the hang, this PR updates the tpls/cpr submodule to the commit that fixes the issue.

[1tnguyen]

Thanks @annagrin