Integrate gitlab-ci/gitlab-markdown-converter and 1 more

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@4f06516a



convert_md2html: fix id fields for headings

Converter adds "user-content-" to "id" fields for headings.
As a result links from TOC do not work.
Fix this for now by removing "user-content-" from the resulting html.

Signed-off-by: Mikhail Vanyulin <mikhail.vanyulin@rtsoft.de>

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@97898e9e



convert_md2html: use gitlab api

Update convert_md2html.py to use gitlab api with gitlab flavor.

Signed-off-by: Mikhail Vanyulin <mikhail.vanyulin@rtsoft.de>