Bump wpackagist-plugin/image-source-control-isc from 3.3.0 to 3.7.0

Bumps wpackagist-plugin/image-source-control-isc from 3.3.0 to 3.7.0.

---
updated-dependencies:
- dependency-name: wpackagist-plugin/image-source-control-isc
  dependency-version: 3.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]