Return type of get method in CacheAdapter should also allow 'undefined'

[SnowMarble]

Describe the bug

Currently the type of get method in CacheAdapter is:

get<T = any>(name: string): T | Promise<T> | undefined;

But, as non-promise return type allows undefined, I think Promise return type also needs to allow undefined.

get<T = any>(name: string): T | Promise<T | undefined> | undefined;

Reproduction

// Type error: Type 'T | undefined' is not assignable to type 'T'
async get<T = unknown>(name: string): Promise<T | undefined> {
  // rest of the code
}

What driver are you using?

None

MikroORM version

6.0.2

Node.js version

Bun v1.0.25

Operating system

No response

Validations

• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Slack.
• The provided reproduction is a minimal reproducible example of the bug.

[B4nan]

PR welcome

[SnowMarble]

gladly! I just handle this one.