Bump react/stream from 0.7.5 to 1.0.0

Bumps [react/stream](https://github.com/reactphp/stream) from 0.7.5 to 1.0.0.
- [Release notes](https://github.com/reactphp/stream/releases)
- [Changelog](https://github.com/reactphp/stream/blob/master/CHANGELOG.md)
- [Commits](reactphp/stream@v0.7.5...v1.0.0)

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

Author: dependabot-support

composer.json

@@ -12,7 +12,7 @@
         "php": "^7.0",
         "api-clients/middleware": "^4.0",
         "react/promise-stream": "^1.1",
-        "react/stream": "^0.7.5",
+        "react/stream": "^1.0.0",
         "ringcentral/psr7": "^1.2"
     },
     "require-dev": {