Htgettoken

- Update version number to 1.7 in htgettoken

- Require jq for the sake of httokendecode

This backports some of the fixes from 2.0 for situations where it's too much work to make the transition to the new packaging system.

- Fix the httokensh background process's check for its parent process. That is only a backup in case only the parent process is hard-killed, because normally the parent process kills the background process when the parent exits.
- Use newer `sts` secrets API for token exchanges.
- Fix the `-o`/`--outfile` option to work with relative paths.
- Change the `--nobearertoken` option to always get and save a vault token.

- Update httokensh to by default set the minimum vault token time to live to 6 days, and to make sure that the background refresh never gets a new vault token.
- Changed the preferred name of httokendecode to htdecodetoken, keeping links in the opposite direction.
- Add man pages for httokensh, htdestroytoken, and htdecodetoken.

- Add httokensh command

- Fix crash introduced in 1.17 when using --nobearertoken while the credkey is not known.
- Make source rpm buildable on el9.