chore: Update docker image to have Go 1.25 and Node 22

[jsteinich]

Description

Updating to JSII 5.9 requires go 1.25. The updated jsii superchain image contains that version.
Also updating to use node 22 as node 20 will become EoL in a couple weeks.

We'll then need a subsequent PR to actually use the new image before then making PRs to actually update JSII/Node.

Checklist

• I have updated the PR title to match CDKTN's style guide
• I have run the linter on my code locally
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation if applicable
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works if applicable
• New and existing unit tests pass locally with my changes

[so0k]

LGTM - note that I sha pinned the jsii-terraform container

cdk-terrain/.github/workflows/build.yml

Line 19 in d227765

image: terraconstructs/jsii-terraform@sha256:4942a4c6ed8286f403c7855dab56b0e11f9a7115e7e0afbcd49d7e69de4d6dc0