docs(js/python): Update beta note for metrics (#15467)

Author: chargome

docs/platforms/javascript/common/metrics/index.mdx

@@ -11,7 +11,7 @@ notSupported:
 With Sentry Metrics, you can send counters, gauges, distributions, and sets from your applications to Sentry. Once in Sentry, these metrics can be viewed alongside relevant errors, and searched using their individual attributes.
 
 <Alert>
-This feature is currently in limited beta. Please reach out on [GitHub](https://github.com/getsentry/sentry-javascript/discussions/18055) if you have feedback or questions. Features in beta are still in-progress and may have bugs. We recognize the irony.
+This feature is currently in open beta. Please reach out on [GitHub](https://github.com/getsentry/sentry-javascript/discussions/18055) if you have feedback or questions. Features in beta are still in-progress and may have bugs. We recognize the irony.
 </Alert>
 
 ## Requirements

docs/platforms/python/metrics/index.mdx

@@ -7,7 +7,7 @@ sidebar_order: 5755
 
 <Alert>
 
-This feature is currently in limited beta. Please reach out on [GitHub](https://github.com/getsentry/sentry-python/discussions/5042) if you have feedback or questions. Features in beta are still in-progress and may have bugs. We recognize the irony.
+This feature is currently in open beta. Please reach out on [GitHub](https://github.com/getsentry/sentry-python/discussions/5042) if you have feedback or questions. Features in beta are still in-progress and may have bugs. We recognize the irony.
 
 </Alert>