Release 0.32.0-rc1 (radius-project#7403)

# Description

This is to release 0.32.0-rc1.

## Type of change

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Fixes: #issue_number

Signed-off-by: Young Bu Park <[email protected]>

versions.yaml

@@ -1,4 +1,6 @@
 supported:
+  - channel: '0.32'
+    version: 'v0.32.0-rc1'
   - channel: '0.31'
     version: 'v0.31.0'
 deprecated: