[OOB] Upgrades 'dotnet-core' to '4.3.4'

[SvcGitHubPATagentoperatorimages]

Automated OOB update requested by SvcGitHubPATagentoperatorimages.

Agent: dotnet-core
Version: 4.3.3 -> 4.3.4

[github-actions]

Images built:

dotnet-core: ghcr.io/contrast-security-oss/agent-operator-images/agent-dotnet-core@sha256:166339fe346b9ce3534b2b7341f2c78d9a8a4c0c5fb6646716c6e888cc8e24b7
dotnet-framework: ghcr.io/contrast-security-oss/agent-operator-images/agent-dotnet-framework@sha256:4c435d4e7862c52b19c6ceb6d7c41980422ad5c2c28b4d7e84a09f6331e61a6c
java: ghcr.io/contrast-security-oss/agent-operator-images/agent-java@sha256:69451dcaa9f958a09d31ac96e45270865f2b4599a07fcdf20b1d4b00c556277e
nodejs: ghcr.io/contrast-security-oss/agent-operator-images/agent-nodejs@sha256:5af15cb7ce4592b8325096e1bc455be21f0f908c8a5d4576d489891e0727dae6
php: ghcr.io/contrast-security-oss/agent-operator-images/agent-php@sha256:aaacfc62d33843a3131b6345cd0717aa6ea2a4841154229a42508ea5cc326ed5
python: ghcr.io/contrast-security-oss/agent-operator-images/agent-python@sha256:57b3dafe23045be47e4d189432c8422f166a25f7504896c791ea464e32d44447