Migrate to https://github.com/gomodules/jsonpatch

[markmandel]

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:

It's better we're on the same project that controller-runtime uses so we can take advantage of any upstream security and bugfixes that may occur - or have occurred already!

Which issue(s) this PR fixes:

Work on #3636 - since if that issue gets fixed, it will get fixed here.
Special notes for your reviewer:

Also, it was a fun little fix to work on 😃

[agones-bot]

Build Succeeded 👏

Build Id: d2cfa4d6-3552-4679-b0e9-bb898c90af68

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:1.39.0-dev-9bf03e0-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.39.0-dev-9bf03e0-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.39.0-dev-9bf03e0-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.39.0-dev-9bf03e0-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.39.0-dev-9bf03e0-amd64
• Linux C++ SDK (build): agonessdk-1.39.0-dev-9bf03e0-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.39.0-dev-9bf03e0-amd64.zip

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

• https://9bf03e0-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3639/head:pr_3639 && git checkout pr_3639
• helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.39.0-dev-9bf03e0-amd64

[agones-bot]

Build Failed 😱

Build Id: 5ecedd06-b7f8-48ba-be37-653614989673

• Cloud Build view
• Cloud Build log download

To get permission to view the Cloud Build view, join the agones-discuss Google Group.

[markmandel]

Already have image (with digest): gcr.io/cloud-builders/gcloud
generic-1.28: ERROR: gcloud crashed (FileNotFoundError): [Errno 2] No such file or directory: 'site/public/images'
generic-1.28: 
generic-1.28: If you would like to report this issue, please run the following command:
generic-1.28:   gcloud feedback
generic-1.28: 
generic-1.28: To check gcloud for common problems, please run the following command:
generic-1.28:   gcloud info --run-diagnostics
generic-1.27: ERROR: gcloud crashed (FileNotFoundError): [Errno 2] No such file or directory: 'site/public/images'
generic-1.27: 
generic-1.27: If you would like to report this issue, please run the following command:
generic-1.27:   gcloud feedback
generic-1.27: 
generic-1.27: To check gcloud for common problems, please run the following command:
generic-1.27:   gcloud info --run-diagnostics

That's a new one! Happened during "submit-e2e-test-cloud-build". Weird!

[agones-bot]

Build Succeeded 👏

Build Id: 996d86d9-ce22-4dbe-a69c-be7c34fe065c

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:1.39.0-dev-2bd47c9-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.39.0-dev-2bd47c9-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.39.0-dev-2bd47c9-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.39.0-dev-2bd47c9-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.39.0-dev-2bd47c9-amd64
• Linux C++ SDK (build): agonessdk-1.39.0-dev-2bd47c9-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.39.0-dev-2bd47c9-amd64.zip

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

• https://2bd47c9-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3639/head:pr_3639 && git checkout pr_3639
• helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.39.0-dev-2bd47c9-amd64