fix: Always add keep-alive socket options in httpcore transports

The original Http2Transport always added KEEP_ALIVE_SOCKET_OPTIONS
unconditionally. The refactored _get_httpcore_pool_options incorrectly
wrapped this in an 'if keep_alive' guard. Remove the guard to match
the original behavior.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: BYK

sentry_sdk/transport.py

@@ -551,11 +551,10 @@ def _get_httpcore_pool_options(
             else []
         )
 
-        if self.options["keep_alive"]:
-            used_options = {(o[0], o[1]) for o in socket_options}
-            for default_option in KEEP_ALIVE_SOCKET_OPTIONS:
-                if (default_option[0], default_option[1]) not in used_options:
-                    socket_options.append(default_option)
+        used_options = {(o[0], o[1]) for o in socket_options}
+        for default_option in KEEP_ALIVE_SOCKET_OPTIONS:
+            if (default_option[0], default_option[1]) not in used_options:
+                socket_options.append(default_option)
 
         options["socket_options"] = socket_options