chore(deps): bump kindest/node from v1.31.1 to v1.31.2 in /tests in the docker-tests group (#6787)

chore(deps): bump kindest/node in /tests in the docker-tests group

Bumps the docker-tests group in /tests with 1 update: kindest/node.


Updates `kindest/node` from v1.31.1 to v1.31.2

---
updated-dependencies:
- dependency-name: kindest/node
  dependency-type: direct:production
  dependency-group: docker-tests
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

tests/Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1.5
 # this is here so we can grab the latest version of kind and have dependabot keep it up to date
-FROM kindest/node:v1.31.1@sha256:cd224d8da58d50907d1dd41d476587643dad2ffd9f6a4d96caf530fb3b9a5956
+FROM kindest/node:v1.31.2@sha256:18fbefc20a7113353c7b75b5c869d7145a6abd6269154825872dc59c1329912e
 
 # this is here so we can grab the latest version of skopeo and have dependabot keep it up to date
 FROM quay.io/skopeo/stable:v1.16.1