[Boundary] Fix the hyperlink in Release Notes (#1229)

* Fix the URL

* 'ibmkms should be ibm kp

Author: yhyakuna

content/boundary/v0.20.x/content/docs/release-notes/v0_20_0.mdx

@@ -132,7 +132,7 @@ description: >-
     Boundary now supports IBM Key Protect for key management.
     <br /><br />You can configure IBM Key Protect as the KMS to manage encryption keys for various functions.
     <br /><br />
-    Learn more:&nbsp;<a href="/boundary/docs/secure/encryption/data-encryption">Data encryption in Boundary</a> and <a href="/boundary/docs/configuration/kms/ibmkms">ibmkms KMS</a>.
+    Learn more:&nbsp;<a href="/boundary/docs/secure/encryption/data-encryption">Data encryption in Boundary</a> and <a href="/boundary/docs/configuration/kms/ibmkp">ibmkp KMS</a>.
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