feat: add explicit config flag for secure cookies

[aeneasr]

Adds a new config flag for session and all other cookies. Falls back to the previous behavior of using the dev mode to decide if the cookie should be secure or not.

Related issue(s)

Checklist

• [ ] I have read the contributing guidelines.
• [ ] I have referenced an issue containing the design document if my change introduces a new feature.
• [ ] I am following the contributing code guidelines.
• [ ] I have read the security policy.
• [ ] I confirm that this pull request does not address a security vulnerability. If this pull request addresses a security vulnerability, I confirm that I got the approval (please contact security@ory.sh) from the maintainers to push the changes.
• [ ] I have added tests that prove my fix is effective or that my feature works.
• [ ] I have added or changed the documentation.

Further Comments

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 81.81818% with 2 lines in your changes missing coverage. Please review.

Project coverage is 78.57%. Comparing base (77beb4d) to head (c34b353). Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
driver/config/config.go	75.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #4180 +/- ## ========================================== - Coverage 78.57% 78.57% -0.01% ========================================== Files 380 380 Lines 27103 27111 +8 ========================================== + Hits 21297 21303 +6 - Misses 4188 4190 +2 Partials 1618 1618 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.