Add 'Trace' to LogLevel in GameServer.Spec.SdkServer

[0xaravindh]

What type of PR is this?

Uncomment only one /kind <> line, press enter to put that in a new line, and remove leading whitespace from that line:

/kind breaking
/kind bug

/kind cleanup

/kind documentation
/kind feature
/kind hotfix
/kind release

What this PR does / Why we need it:

Which issue(s) this PR fixes: #3969

Closes #3969

Special notes for your reviewer:

[agones-bot]

Build Failed 😭

Build Id: 4d2e7967-5a5a-471e-9025-9c1e5b8ab506

Status: FAILURE

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[agones-bot]

Build Succeeded 🥳

Build Id: 8c7eee32-1727-41de-be5f-b367ae1bf941

The following development artifacts have been built, and will exist for the next 30 days:

• image: us-docker.pkg.dev/agones-images/ci/agones-controller:1.44.0-dev-a96ad67
• image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.44.0-dev-a96ad67
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.44.0-dev-a96ad67-linux
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.44.0-dev-a96ad67
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.44.0-dev-a96ad67
• Linux C++ SDK (build): agonessdk-1.44.0-dev-a96ad67-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.44.0-dev-a96ad67.zip

A preview of the website (the last 30 builds are retained):

• https://a96ad67-dot-preview-dot-agones-images.appspot.com/

To install this version:

git fetch https://github.com/googleforgames/agones.git pull/3995/head:pr_3995 && git checkout pr_3995
helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.44.0-dev-a96ad67

[gongmax]

Did you perform any manual test as describe here