Bump svg-services from f7ea8cd to b7d3bd1 in the submodules group

Bumps the submodules group with 1 update: [svg-services](https://github.com/reupen/svg-services).


Updates `svg-services` from `f7ea8cd` to `b7d3bd1`
- [Release notes](https://github.com/reupen/svg-services/releases)
- [Commits](reupen/svg-services@f7ea8cd...b7d3bd1)

---
updated-dependencies:
- dependency-name: svg-services
  dependency-type: direct:production
  dependency-group: submodules
...

Signed-off-by: dependabot[bot] <[email protected]>