Update blinker requirement from <1.5,>=1.4 to >=1.4,<1.6 in /api

[dependabot]

Updates the requirements on blinker to permit the latest version.

Release notes

Sourced from blinker's releases.

1.5

Blinker has moved to Pallets-Eco, an organization for community maintenance of projects related to Pallets, Flask, etc. If you use Blinker and are interested in helping maintain the project, please join us in Discord Chat https://discord.gg/pallets.

This release fixes some compatibility with Python >= 3.7. Python < 3.7, including 2.7 and Jython, should still work for this release, but will no longer be supported in the next release.

The documentation has moved to Read the Docs https://blinker.readthedocs.io.

Changelog

Sourced from blinker's changelog.

Version 1.5

Released 2022-07-17

• Support Python >= 3.7 and PyPy. Python 2, Python < 3.7, and Jython may continue to work, but the next release will make incompatible changes.

Version 1.4

Released 2015-07-23

• Verified Python 3.4 support, no changes needed.
• Additional bookkeeping cleanup for non-ANY connections at disconnect time.
• Added Signal._cleanup_bookeeping() to prune stale bookkeeping on demand.

Version 1.3

Released 2013-07-03

• The global signal stash behind signal() is now backed by a regular name-to-Signal dictionary. Previously, weak references were held in the mapping and ephermal usage in code like signal('foo').connect(...) could have surprising program behavior depending on import order of modules.
• Namespace is now built on a regular dict. Use WeakNamespace for the older, weak-referencing behavior.
• Signal.connect('text-sender') uses an alterate hashing strategy to avoid sharp edges in text identity.

Version 1.2

Released 2011-10-26

• Added Signal.receiver_connected and Signal.receiver_disconnected per-Signal signals.
• Deprecated the global receiver_connected signal.
• Verified Python 3.2 support, no changes needed.

Version 1.1

... (truncated)

Commits

• 28e19c7 Merge pull request #73 from pallets-eco/release-1.5
• a458162 release version 1.5
• 4dcf0bb add maintainer metadata
• a1c28db add readme content type
• 6faca1c update gitignore
• 084d2bd Merge pull request #72 from pallets-eco/refresh
• 834b37f add github workflow for tests
• e11e6d8 update links
• 4e83e35 update sdist manifest
• ec4218d convert readme to rst
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[dependabot]

Superseded by #602.