V1.10 release

[samuelcolvin]

To do/decide:

• refactor: change pydantic dataclass decorator #2557 - merged
• Add ability to have custom encoder for builtin types #2745 - needs some tweaks, but we need to decide if it's a good idea before V2
• fix(settings): stop using Config.env_prefix for secrets in BaseSettings #2190 - deferred
• cherry pick stuff from v1.9 branch, maybe just history Pick 1.9 #4350
• feat(timedelta): add scientific notation #3346
• fix: using constraints in generics no longer raises ValueError (#2581, #3358) #3593 - deferred
• create_model support generics model #3946
• Add mypy type checked shallow and deep copy methods to BaseModel #4028 - API will change in v2
• fix "extra fields not permitted" error when dataclass with Extra.forbid is validated multiple times #4354
• Implement proper support for nested complex env values #4216
• Fix #4192 bug with BaseModel.construct and aliased Fields #4191
• Add nested json encoding #3941 - revert or fix
• Generate docs exampels for Python 3.10 and above #4339
• fix dataclass containing Any #4356

[samuelcolvin]

Ideally I'd like to get a pre-release of V1.10 out early next week.

If you have a change you'd like to be included in V1.10, please make sure your PRs are ready to merge and use the magic comment "please review" to assign us.

[DetachHead]

#4356 is ready to go i think

[satheler]

#4165 is ready to go i think

[invokermain]

#3674 would be amazing 🙏

[samuelcolvin]

#3674 would be amazing pray

this is already merged, so will be included.

[samuelcolvin]

so are #4165 and #4356.