Bump @opentelemetry/core from 0.8.3 to 0.9.0

Bumps [@opentelemetry/core](https://github.com/open-telemetry/opentelemetry-js) from 0.8.3 to 0.9.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-js/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/open-telemetry/opentelemetry-js/compare/v0.8.3...v0.9.0)

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

examples/grpc/package.json

@@ -34,7 +34,7 @@
   "dependencies": {
     "@azure/monitor-opentelemetry-exporter": "^1.0.0-preview.2",
     "@opentelemetry/api": "^0.8.2",
-    "@opentelemetry/core": "^0.8.2",
+    "@opentelemetry/core": "^0.9.0",
     "@opentelemetry/node": "^0.9.0",
     "@opentelemetry/plugin-grpc": "^0.9.0",
     "@opentelemetry/tracing": "^0.8.2",

examples/https/package.json

@@ -35,7 +35,7 @@
   "dependencies": {
     "@azure/monitor-opentelemetry-exporter": "^1.0.0-preview.2",
     "@opentelemetry/api": "^0.8.2",
-    "@opentelemetry/core": "^0.8.2",
+    "@opentelemetry/core": "^0.9.0",
     "@opentelemetry/node": "^0.9.0",
     "@opentelemetry/plugin-http": "^0.8.2",
     "@opentelemetry/plugin-https": "^0.9.0",

packages/azure-opentelemetry-exporter/package.json

@@ -29,7 +29,7 @@
   },
   "dependencies": {
     "@opentelemetry/api": "^0.8.2",
-    "@opentelemetry/core": "^0.8.2",
+    "@opentelemetry/core": "^0.9.0",
     "@opentelemetry/tracing": "^0.8.2"
   },
   "sideEffects": false,