Bump Flask and Werkzeug versions

[ndrezn]

We pin flask and werkzeug to older (3.0.6 / 3.0.3) versions. We should upgrade these.

We'll need to ensure compatibility across our ecosystem (OSS and Enterprise libraries). This is likely not something for 3.0 but worth considering.

[nhoover]

Would be really nice if this could be included in 3.0

[ndrezn]

This issue was encountered during a Dash Enterprise trial.