[OOB] Upgrades 'dotnet-core' to '4.3.1'

[SvcGitHubPATagentoperatorimages]

Automated OOB update requested by SvcGitHubPATagentoperatorimages.

Agent: dotnet-core
Version: 4.3.0 -> 4.3.1

[github-actions]

Images built:

dotnet-core: ghcr.io/contrast-security-oss/agent-operator-images/agent-dotnet-core@sha256:83bee7dcfb4fe37f961b69a8707a4d4b4a93bbec93b653b00e0a7c28a85150d9
dotnet-framework: ghcr.io/contrast-security-oss/agent-operator-images/agent-dotnet-framework@sha256:07bc4bb7ded3cdd475211f0b64cfd286feecfc6183ed28d905751a8bb17e7970
java: ghcr.io/contrast-security-oss/agent-operator-images/agent-java@sha256:b4f8314b4768f822a3cfb6d78f13825d6f57d8c2f62025d4884d5fd92cbdec38
nodejs: ghcr.io/contrast-security-oss/agent-operator-images/agent-nodejs@sha256:cc6b99a9c472cab3248dae29d90f1ef360c4c7bde9a325ee85e22f06a95aec9c
php: ghcr.io/contrast-security-oss/agent-operator-images/agent-php@sha256:e5578bbebca029efb9c173f042084e315a07d2e01f5daefa99df50bac1e94f08
python: ghcr.io/contrast-security-oss/agent-operator-images/agent-python@sha256:f921c6d3f6db7ab23b4528ac99054d9c1843a1b3d274131e00416b8a632c2110