EuiFieldNumber should allow step attribute with "any" value

[darnautov]

Kibana: master
EUI: 23.3.1

According to the <input type="number"> specification step attribute supports "any" as a valid value. At the moment EuiFieldNumber accepts step prop of type number only. Besides TS complaining about the prop type, I also get warning in console Warning: Failed prop type: Invalid prop "step" of type "string" supplied to "EuiFieldNumber", expected "number".

[cchaos]

Action: allow the string 'any' as an option to the step prop of EuiFieldNumber

[shrey]

Hey, I'd like to work on this issue

[chandlerprall]

Go for it!

[shrey]

@chandlerprall @cchaos Is this okay?

export type EuiFieldNumberProps = InputHTMLAttributes<HTMLInputElement> &
  CommonProps & {
    icon?: IconType;
    isInvalid?: boolean;
    fullWidth?: boolean;
    isLoading?: boolean;
    readOnly?: boolean;
    min?: number;
    max?: number;
    step?: number | 'any';
    inputRef?: Ref<HTMLInputElement>;

[cchaos]

Yes, that looks great. Go ahead and create a PR!