.github/workflows: Bump actions/stale from 5 to 6

[dependabot]

Bumps actions/stale from 5 to 6.

Release notes

Sourced from actions/stale's releases.

v6.0.0

⚠️ Breaking change ⚠️

Issues/PRs default close-issue-reason is now not_planned(#789)

Changelog

Sourced from actions/stale's changelog.

Changelog

[7.0.0]

⚠️ Breaking change ⚠️

• Allow daysBeforeStale options to be float by @​irega in actions/stale#841
• Use cache in check-dist.yml by @​jongwooo in actions/stale#876
• fix print outputs step in existing workflows by @​irega in actions/stale#859
• Update issue and PR templates, add/delete workflow files by @​IvanZosimov in actions/stale#880
• Update how stale handles exempt items by @​johnsudol in actions/stale#874

[6.0.1]

Update @​actions/core to v1.10.0 (#839)

[6.0.0]

⚠️ Breaking change ⚠️

Issues/PRs default close-issue-reason is now not_planned(#789)

[5.1.0]

Don't process stale issues right after they're marked stale [Add close-issue-reason option]#764#772 Various dependabot/dependency updates

4.1.0 (2021-07-14)

Features

• Ability to exempt draft PRs

4.0.0 (2021-07-14)

Features

• options: simplify config by removing skip stale message options (#457) (6ec637d), closes #405 #455
• output: print output parameters (#458) (3e6d35b)

Bug Fixes

• dry-run: forbid mutations in dry-run (#500) (f1017f3), closes #499
• logs: coloured logs (#465) (5fbbfba)
• operations: fail fast the current batch to respect the operations limit (#474) (5f6f311), closes #466
• label comparison: make label comparison case insensitive #517, closes #516
• filtering comments by actor could have strange behavior: "stale" comments are now detected based on if the message is the stale message not who made the comment(#519), fixes #441, #509, #518

Breaking Changes

... (truncated)

Commits

• 5ebf00e Update @​actions/core to 1.10.0
• 3de2653 Update changelog for v6.0.0 (#829)
• 02e44c8 fix(options)!: Make not_planned the default close-issue-reason (#807)
• See full diff in compare view

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[github-actions]

This pull request has been automatically marked as stale because it has not had any activity for 60 days. It will be closed if no further activity occurs for another 30 days.
If you are a maintainer or core committer, please follow-up on this pull request to identify what steps should be taken by the author to move this proposed change forward.
If you are the author of this pull request, thank you for your proposed contribution. If you believe this change is still appropriate, please ensure that any feedback has been addressed and ask for a code review.

[github-actions]

This pull request has been automatically closed because there has been no activity for 90 days. Please feel free to reopen this pull request (or open a new one) if the proposed change is still appropriate. Thank you for your contribution!

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.