Bump mockserver.version from 6.1.0 to 7.0.0 (#1906)

Bumps `mockserver.version` from 6.1.0 to 7.0.0.

Updates `org.mock-server:mockserver-junit-jupiter` from 6.1.0 to 7.0.0

Updates `org.mock-server:mockserver-netty` from 6.1.0 to 7.0.0

---
updated-dependencies:
- dependency-name: org.mock-server:mockserver-junit-jupiter
  dependency-version: 7.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
- dependency-name: org.mock-server:mockserver-netty
  dependency-version: 7.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Mark Waite <mark.earl.waite@gmail.com>