Build(deps-dev): Bump jspm from 4.4.0 to 4.5.0 (#1219)

Bumps [jspm](https://github.com/jspm/jspm) from 4.4.0 to 4.5.0.
- [Release notes](https://github.com/jspm/jspm/releases)
- [Commits](jspm/jspm@4.4.0...4.5.0)

---
updated-dependencies:
- dependency-name: jspm
  dependency-version: 4.5.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]