feat(authentication): add manifest for disabling self-provisioning

[jeichler]

small one :)

[rbo]

/ok-to-test

[benito-greybeard-cicd]

💀 There was an error during pre-commit / linter:

[INFO] Initializing environment for https://github.com/markdownlint/markdownlint.git.
[INFO] Initializing environment for https://github.com/adrienverge/yamllint.git.
[INFO] Installing environment for https://github.com/markdownlint/markdownlint.git.
[INFO] Once installed this environment will be reused.
[INFO] This may take a few minutes...
[INFO] Installing environment for https://github.com/adrienverge/yamllint.git.
[INFO] Once installed this environment will be reused.
[INFO] This may take a few minutes...
Markdownlint.............................................................Failed
- hook id: markdownlint
- exit code: 1

content/cluster-configuration/authentication/redhat-sso.md:39: MD022 Headers should be surrounded by blank lines
content/cluster-configuration/authentication/redhat-sso.md:9: MD026 Trailing punctuation in header
content/cluster-configuration/authentication/redhat-sso.md:40: MD031 Fenced code blocks should be surrounded by blank lines

Further documentation is available for these failures:
 - MD022: https://github.com/markdownlint/markdownlint/blob/main/docs/RULES.md#md022---headers-should-be-surrounded-by-blank-lines
 - MD026: https://github.com/markdownlint/markdownlint/blob/main/docs/RULES.md#md026---trailing-punctuation-in-header
 - MD031: https://github.com/markdownlint/markdownlint/blob/main/docs/RULES.md#md031---fenced-code-blocks-should-be-surrounded-by-blank-lines

yamllint.............................................(no files to check)Skipped

[rbo]

Looks like that's my old content. I can fix it next days. If you like feel free :-)

PS.: you can run local linter with the run-local* shell script

[rbo]

/retest