Bump infinityloop-dev/graphpinator from 1.7.2 to 1.7.6

Bumps [infinityloop-dev/graphpinator](https://github.com/graphpql/graphpinator) from 1.7.2 to 1.7.6.
- [Release notes](https://github.com/graphpql/graphpinator/releases)
- [Commits](graphpql/graphpinator@v1.7.2...v1.7.6)

---
updated-dependencies:
- dependency-name: infinityloop-dev/graphpinator
  dependency-version: 1.7.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]