Bump @graphql-tools/git-loader from 8.0.14 to 8.0.15

Bumps [@graphql-tools/git-loader](https://github.com/ardatan/graphql-tools/tree/HEAD/packages/loaders/git) from 8.0.14 to 8.0.15.
- [Release notes](https://github.com/ardatan/graphql-tools/releases)
- [Changelog](https://github.com/ardatan/graphql-tools/blob/master/packages/loaders/git/CHANGELOG.md)
- [Commits](https://github.com/ardatan/graphql-tools/commits/@graphql-tools/[email protected]/packages/loaders/git)

---
updated-dependencies:
- dependency-name: "@graphql-tools/git-loader"
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]