[release-4.13] Add Git Repository (PAC) doesn't setup GitLab and Bitbucket configuration correct

Description of problem:
When adding a "Git Repository" (a tekton or pipelines Repository) and enter a GitLab or Bitbucket PAC repository the created Repository resource is invalid.

Version-Release number of selected component (if applicable):
411-4.13

How reproducible:
Always

Steps to Reproduce:
Setup a PAC git repo, you can mirror these projects if you want: https://github.com/jerolimov/nodeinfo-pac

For GitHub you need setup

1. an account-global "private access token" > a classic access token, see https://github.com/settings/tokens
2. a repo > webhook

For GitLab:

1. a repo > Project Access Tokens
2. a repo > webhook

For Bitbucket:

1. an account-global "app password, see https://bitbucket.org/account/settings/app-passwords/
2. a repo > webhook

On a cluster bot instance:

1. Install OpenShift Pipelines operator
2. Navigate to Developer perspective > Pipelines
3. Select Create > Repository
4. Enter a GitLab based git repository with Git access token and Webhook secret
5. Enter a Bitbucket based git repository with Git access token (webhook secret isn't supported)

Actual results:
The GitLab created resource looks like this:

apiVersion: pipelinesascode.tekton.dev/v1alpha1
kind: Repository
metadata:
  name: gitlab-nodeinfo-pac
spec:
  git_provider:
    secret:
      key: provider.token
      name: gitlab-nodeinfo-pac-token-gfr66
    url: gitlab.com   # missing schema
    webhook_secret:
      key: webhook.secret
      name: gitlab-nodeinfo-pac-token-gfr66
  url: 'https://gitlab.com/jerolimov/nodeinfo-pac'

The Bitbucket resource looks like this:

apiVersion: pipelinesascode.tekton.dev/v1alpha1
kind: Repository
metadata:
  name: bitbucket-nodeinfo-pac
spec:
  git_provider:
    secret:
      key: provider.token
      name: bitbucket-nodeinfo-pac-token-9pf75
    url: bitbucket.org   # missing schema and invalid API URL !
    webhook_secret:   # don't entered a webhook URL, see OCPBUGS-7035
      key: webhook.secret
      name: bitbucket-nodeinfo-pac-token-9pf75
  url: 'https://bitbucket.org/jerolimov/nodeinfo-pac'

The pipeline-as-code controller Pod log contains some error messages and no PipelineRun is created.

Expected results:
For GitLab:

1. The spec.git_provider.url should contain the schema https://, so it should be https://gitlab.com, or can be removed completely. Both work fine.
   A working example:

apiVersion: pipelinesascode.tekton.dev/v1alpha1
kind: Repository
metadata:
  name: gitlab-nodeinfo-pac
spec:
  git_provider:
    secret:
      key: provider.token
      name: gitlab-nodeinfo-pac-token-gfr66
    url: https://gitlab.com
    webhook_secret:
      key: webhook.secret
      name: gitlab-nodeinfo-pac-token-gfr66
  url: 'https://gitlab.com/jerolimov/nodeinfo-pac'

Bitbucket:

1. The spec.git_provider.url should be https://api.bitbucket.org/2.0, or can be removed completely. Both work fine.
2. The Account Secret needs also a Bitbucket login name, passed as spec.git_provider.user.

A working example:

apiVersion: pipelinesascode.tekton.dev/v1alpha1
kind: Repository
metadata:
  name: bitbucket-nodeinfo-pac
spec:
  git_provider:
    user: jerolimov
    secret:
      key: provider.token
      name: bitbucket-nodeinfo-pac-token-9pf75
    webhook_secret:
      key: webhook.secret
      name: bitbucket-nodeinfo-pac-token-9pf75
  url: 'https://bitbucket.org/jerolimov/nodeinfo-pac'

A PipelineRun should be created for each push to the git repo.

Additional info:

1. Bitbucket use a small 2nd b.
2. For the Bitbucket issue see also https://github.com/openshift-pipelines/pipelines-as-code/issues/416