chore: Update logo for dark or light theme (#1426)

Author: mattjohnsonpint

README.md

@@ -1,6 +1,10 @@
 <p align="center">
-    <a href="https://sentry.io" target="_blank" align="center">
-        <img src="https://sentry-brand.storage.googleapis.com/sentry-logo-black.png" width="280">
+    <a href="https://sentry.io/?utm_source=github&utm_medium=logo" target="_blank" align="center">
+        <picture>
+            <source srcset="https://sentry-brand.storage.googleapis.com/sentry-logo-white.png" media="(prefers-color-scheme: dark)" />
+            <source srcset="https://sentry-brand.storage.googleapis.com/sentry-logo-black.png" media="(prefers-color-scheme: light), (prefers-color-scheme: no-preference)" />
+            <img src="https://sentry-brand.storage.googleapis.com/sentry-logo-black.png" alt="Sentry" width="280">
+        </picture>
     </a>
 </p>