Update plum-dispatch requirement from ~=1.3.2 to >=1.3.2,<1.6.0

Created by: dependabot[bot]

Updates the requirements on plum-dispatch to permit the latest version.

Release notes

Sourced from plum-dispatch's releases.

v1.5.0

• Add support for typing.Dict.

Commits

• 40c817a Increase version number
• b20cb7f Add support for typing.Dict
• 1b31872 Revert "Attempt to fix CI"
• 196f97f Attempt to fix CI
• 4216088 Revert "Attempt to fix CI"
• a8ac6be Attempt to fix CI
• 85bce7b Run Black
• 861a662 Increase version number
• 125e1a7 Add two more comments
• 34732a1 Fix README example and stylistic issues
• 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)