Make react-datetime compatible with React 17.0.2

[josh-annexus]

I'm Submitting a ...

[ ] Bug report
[ ] Feature request
[x] Support request

Steps to Reproduce

I'm using npm version 7 and getting the following peerDependency error:
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: [myProject]
npm ERR! Found: react@17.0.2
npm ERR! node_modules/react
npm ERR! react@"^17.0.2" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer react@"^16.5.0" from react-datetime@3.0.4
npm ERR! node_modules/react-datetime
npm ERR! react-datetime@"^3.0.4" from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.

Expected Results

Actual Results

Minimal Reproduction of the Problem

Other Information (e.g. stacktraces, related issues, suggestions how to fix)

[alejandroiglesias]

@arqex could you please merge #764 to fix this?

[alejandroiglesias]

@layneanderson great! Will a new release come out soon? Without publishing this change into npm, it still cannot be installed.