Implement namespaced resources and upgrade crossplane runtime

[ricCap]

Description of your changes

This PR contains the changes from #139 and #141, and implements namespaced MRs #128.

This PR includes:

• bump up the crossplane runtime to v2
• use chainsaw for e2e tests
• ⚠️ External Secret Store support is removed from ALL MRs (spec.publishConnectionDetailsTo is removed). This feature was alpha and it was decided to be removed from crossplane.
• all other changes are backwards-compatible
• adding namespaced resources and moving v1 resources to a different subfolder (cluster)
• new resources are in the api group http.m.crossplane.io
• adds e2e tests for new resources and adds to the Github Actions workflow jobs for running e2e tests with both crossplane v1 and v2
• similar changes to crossplane v2: Generate namespace-scoped MRs provider-upjet-azure#1019 (comment)
• skip secret injection during deletion of resources (fixes deletion, all namespaced e2e tests can now be deleted using foreground deletion). You can test this using the example application below

The aim of this PR is to avoid any breaking changes to the existing resources

The changes are based on the following examples:

• crossplane v2: Generate namespace-scoped MRs provider-upjet-azure#1019
• feat: Migrate provider-template from cluster scope to namespaced scope crossplane/provider-template#132

Warning Not sure how to modify the hack folder, I left it as it was

Fixes #128

I have:

• Read and followed Crossplane's contribution process.
• Run make reviewable test to ensure this PR is ready for review.

How has this code been tested

• e2e tests in the pipeline
• deployed with argocd (foreground delete in ArgoCD works now as well)

Test in ArgoCD

Install using helm and use this application

apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: provider-http-namespaced-examples
  namespace: argocd
spec:
  project: default
  source:
    repoURL: https://github.com/ricCap/provider-http
    targetRevision: upgrade-crossplane-runtime-and-add-namespaced-resources
    path: examples/namespaced
  destination:
    server: https://kubernetes.default.svc
    namespace: default
  syncPolicy:
    automated:
      prune: true
      selfHeal: true
    syncOptions:
    - CreateNamespace=true