update CPR to 1.6.2

[Macfly]

Specify library name and version: cpr/1.6.2

Updating this because I'm a user of this library and wanted to use the latest version of it with Conan in my project. I think I have done this correctly (though this is my first time messing with recipes, so please let me know if something needs to be changed!)

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• [x ] I've read the guidelines for contributing.
• [x ] I've followed the PEP8 style guides for Python code in the recipes.
• [x ] I've used the latest Conan client version.
• [ x] I've tried at least one configuration locally with the
  conan-center hook activated.

[CLAassistant]

All committers have signed the CLA.

[conan-center-bot]

Sorry, the build is only launched for Early Access Program users. You can request access writing in this issue.

[ghost]

I detected other pull requests that are modifying cpr/all recipe:

• Add support for cpr 1.6.2 #5353

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.