Setup yamllint and local render

[ytsarev]

Description of your changes

• config
• make target
• github action
• render target

Fixes #

I have:

• Read and followed Upbound's contribution process.
• Run make reviewable to ensure this PR is ready for review.
• Added backport release-x.y labels to auto-backport this PR, as appropriate.

How has this code been tested

make render
crossplane beta render examples/flux-xr.yaml apis/composition.yaml examples/functions.yaml -r
---
apiVersion: gitops.platform.upbound.io/v1alpha1
kind: XFlux
metadata:
  name: configuration-gitops-flux
---
apiVersion: helm.crossplane.io/v1beta1
kind: Release
...

Before the yaml fixes

make yamllint
17:12:51 [ .. ] running yamllint
./apis/definition.yaml
  104:96    error    trailing spaces  (trailing-spaces)

17:12:51 [FAIL]
make: *** [Makefile:74: yamllint] Error 1

[ytsarev]

/test-examples