npm: update packages to fix dependency issues

[haraldschilly]

• SAML: updating node-saml and passport-saml to fix xml-crypto. the update are at least two breaking changes, we need backwards compatibility → this must be tested. Apart from the cert → idpCert conversion, this also changes the default for validateInResponseTo (to the default value "never").
  • I've tested this with my own small SAML server
• next: 14.2.22 → 14.2.28
  • pages show up fine
• forced update of tar-fs@2.1.1 → 2.1.2, reverse dependencies like next do not include that update
  • this is just a small dependency update
• updating @openapitools/openapi-generator-cli … this doesn't directly fix the problem, but at least it is updated to the most recent version and from there is should be just a small step to get the patch
  • I tested it by querying a couple of api endpoints, no problem, API v2 pages show up as usual as well.

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deployment: the only real attention must be made to our own SAML SSO