docs(metrics): add upcoming SDKs to Metrics getting started page (#15545)

Author: dingsdax

docs/product/explore/metrics/getting-started/index.mdx

@@ -217,6 +217,73 @@ Minimum SDK version: **2.43.0**
     url="/platforms/python/guides/gcp-functions/metrics/"
   />
 
+## Upcoming SDKs
+
+We're actively working on adding Metrics functionality to additional SDKs. Check out these GitHub issues for the latest updates:
+
+
+- <LinkWithPlatformIcon
+    platform="php"
+    label="PHP (incl. Laravel)"
+    url="https://github.com/getsentry/sentry-php/issues/1966"
+  />
+
+- <LinkWithPlatformIcon
+    platform="ruby"
+    label="Ruby (incl. Rails)"
+    url="https://github.com/getsentry/sentry-ruby/issues/2776"
+  />
+
+- <LinkWithPlatformIcon
+    platform="go"
+    label="Go"
+    url="https://github.com/getsentry/sentry-go/issues/1136"
+  />
+
+- <LinkWithPlatformIcon
+    platform="java"
+    label="Java"
+    url="https://github.com/getsentry/sentry-java/issues/4906"
+  />
+
+- <LinkWithPlatformIcon
+    platform="rust"
+    label="Rust"
+    url="https://github.com/getsentry/sentry-rust/issues/938"
+  />
+
+- <LinkWithPlatformIcon
+    platform="dotnet"
+    label=".NET"
+    url="https://github.com/getsentry/sentry-dotnet/issues/4741"
+  />
+
+- <LinkWithPlatformIcon
+    platform="react-native"
+    label="React Native"
+    url="https://github.com/getsentry/sentry-react-native/issues/5384"
+  />
+
+- <LinkWithPlatformIcon
+    platform="android"
+    label="Android"
+    url="https://github.com/getsentry/sentry-java/issues/4906"
+  />
+
+- <LinkWithPlatformIcon
+    platform="apple"
+    label="Apple"
+    url="https://github.com/getsentry/sentry-cocoa/issues/6815"
+  />
+
+- <LinkWithPlatformIcon
+    platform="dart.flutter"
+    label="Flutter"
+    url="https://github.com/getsentry/sentry-dart/issues/3350"
+  />
+
+If you don't see your platform listed above, please reach out to us on [GitHub](https://github.com/getsentry/sentry/discussions/102275) or [Discord](https://discord.gg/sentry), we'll get it prioritized!
+
 ## Quick Start Examples
 
 ### JavaScript Example