update to version 8.2.0 configured with ncurses

[harlantc]

Checklist

• [x] Used a personal fork of the feedstock to propose changes
• [x] Bumped the build number (if the version is unchanged)
• [x] Reset the build number to 0 (if the version changed)
• [x] Re-rendered with the latest conda-smithy (Use the phrase code>@<space/conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• [x] Ensured the license file is being packaged.

Bump to readline version 8.2.0, as well as updated to use the --with-curses configure flag, as that was missing, resulting in termcap being used instead, and meaning the pkg-config file would have Requires.private: termcap instead of ncurses

[conda-forge-webservices[bot]]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[harlantc]

@conda-forge-admin, please rerender

[asmeurer]

Hopefully merging this right after #25 won't stop it from building (assuming we also want a curses build of 8.1).