Update gplugins[sax,schematic,tidy3d] requirement

Updates the requirements on [gplugins[sax,schematic,tidy3d]](https://github.com/gdsfactory/gplugins) to permit the latest version.
- [Release notes](https://github.com/gdsfactory/gplugins/releases)
- [Changelog](https://github.com/gdsfactory/gplugins/blob/main/CHANGELOG.md)
- [Commits](gdsfactory/gplugins@v0.5.0...v0.7.0)

---
updated-dependencies:
- dependency-name: gplugins[sax,schematic,tidy3d]
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

pyproject.toml

@@ -16,7 +16,7 @@ classifiers = [
 ]
 dependencies = [
   "gdsfactory[cad]==7.4.6",
-  "gplugins[tidy3d,sax,schematic]>=0.5.0,<0.6.0"
+  "gplugins[tidy3d,sax,schematic]>=0.5.0,<0.8.0"
 ]
 description = "ubcpdk pdk"
 keywords = ["python"]