feat: new rafiki release pipeline and nodejs bump to v20 (#2510)

* ci: update workflows

* docs: update planning call -> community call

* docs: improve wording

* feat(workflows): change nodejs version to latest lts

* feat(workflows): add new action for release and publish

* bump(nodejs): v20

* feat(workflows): release publish action add prerequisite for docker build

* feat(workflows): update versions to work with node20

* fix(workflows): docker multiplatform build and add open api validator to backend

* fix(workflows): add codeql analysis back

* bump(renovate): constraint nodejs to lower than v21

* fix(workflow): token introspection openapi path

Co-authored-by: Sabine Schaller <sabine@interledger.org>

* fix(workflow): backend openapi path

Co-authored-by: Sabine Schaller <sabine@interledger.org>

* fix(workflows): token introspection openapi specs path

Co-authored-by: Max Kurapov <maxkurapov@gmail.com>

* fix(workflows): auth openapi specs path

Co-authored-by: Max Kurapov <maxkurapov@gmail.com>

* fix(workflows): backend openapi specs path

Co-authored-by: Max Kurapov <maxkurapov@gmail.com>

* feat(workflows): build multiple platforms only on release branch

* fix(workflows): specify new job for doing a docker build for specific platform on non release branch

* fix(workflows): use sha instead of refname

* fix(workflows): reorder mase steps

* chore(workflows): remove unnecessary workflows

* fix(workflows): add missing integration test

* fix(workflows): add integration tests as prereqs for node build

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Co-authored-by: Sabine Schaller <sabine@interledger.org>
Co-authored-by: Max Kurapov <maxkurapov@gmail.com>