Update protobuf requirement from <7.0,>=4.21.1 to >=4.21.1,<8.0

Updates the requirements on [protobuf](https://github.com/protocolbuffers/protobuf) to permit the latest version.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-version: 7.35.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -51,7 +51,7 @@ dependencies = [
   "opentelemetry-api>=1.27.0,<1.44",
   "opentelemetry-sdk>=1.27.0,<1.44",
   "opentelemetry-exporter-otlp-proto-http>=1.27.0,<1.44",
-  "protobuf>=4.21.1,<7.0",
+  "protobuf>=4.21.1,<8.0",
   "pulp-glue>=0.30.0,<0.41",
   "pygtrie>=2.5,<=2.5.0",
   "psycopg[binary]>=3.1.8,<3.4",  # SemVer, not explicitely stated, but mentioned on multiple changes.