Do not automatically enable YJIT nor attempt to detect rustc

Latest Ruby 3.2 development version now detects `rustc` on the system and automatically assumes `--enable-yjit` on susupported platforms unless `--disable-yjit` was explicitly passed.

Update to openssl 1.1.1s

Ruby 3.2.0-preview3 has been released.
https://www.ruby-lang.org/en/news/2022/11/11/ruby-3-2-0-preview3-released/

Mark Ruby 2.6 as EOL and 2.7 as "unsupported"

Use OpenSSL 3.0.7 for ruby 3.1

There are a couple of HIGH severity issues fixed in this release, as
described in:

https://www.openssl.org/news/secadv/20221101.txt

Done with:

./script/update-openssl 3.0.7 83049d042a260e696f62406ac5c08bf706fd84383f945cf21bd61e9ed95c396e

Checksum taken from:

https://www.openssl.org/source/openssl-3.0.7.tar.gz.sha256

Add JRuby 9.3.9.0

Fix `rbenv install --list` exit status

List output: only print stderr notice if printing to a terminal

This makes it easier to redirect `rbenv install -l` output without having to silence stderr to get rid of the extra notice.

Upon installing their first Ruby version on the system, the user may want to set it as their default; otherwise the default will remain "system" and any `gem install` attempts will fail with a permission error.

This suggestion is skipped if the user already has chosen an explicit default, even if it's "system".

Allow OPENSSL_VERSION_TEXT string match without last line for OpenSUSE

macOS: Use GMP from homebrew

MRI's BigInt use GMP under the hood if available, and if not
fallbacks to an homemade implementation with much worse performance.

Without GMP:
```
>> Benchmark.realtime { Integer('1' * (10 ** 7)) }
=> 13.80743500002427
```

With GMP
```
>> Benchmark.realtime { Integer('1' * (10 ** 7)) }
=> 0.4098639999865554
```

macOS not being a common production platform, it's not a huge deal
but it would still preferable to compile with `gmp.h` if present.

I'd also suggest to print a warning if compiling on macOS and gmp
isn't installed, but I don't know if it's desirable.

NB: `--with-gmp-dir` was only added recently, so this will only
apply to MRI >= 3.2, as well as rubies on which this flag was backported.

ci(lint): add shell linter - Differential ShellCheck

It performs differential ShellCheck scans and report results directly in pull request.

documentation: https://github.com/redhat-plumbers-in-action/differential-shellcheck



Signed-off-by: Jan Macku <jamacku@redhat.com>

Signed-off-by: Varun Sharma <varunsh@stepsecurity.io>

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