GUACAMOLE-641: Canonicalize individual, tokenized components of secret names rather than the whole name.

In the event that a secret name is structured, such as the URL-like
notation used by Keeper Secrets Manager, canonicalizing/encoding the
entire name could result in the name itself becoming invalid. Only the
portions that come from tokens should be canonicalized.

extensions/guacamole-vault/modules/guacamole-vault-azure/src/main/java/org/apache/guacamole/vault/azure/secret/AzureKeyVaultSecretService.java

@@ -66,8 +66,8 @@ public class AzureKeyVaultSecretService extends CachedVaultSecretService {
      * not allowed by Azure Key Vault, replacing them with a single dash.
      */
     @Override
-    public String canonicalize(String name) {
-        Matcher disallowed = DISALLOWED_CHARACTERS.matcher(name);
+    public String canonicalize(String nameComponent) {
+        Matcher disallowed = DISALLOWED_CHARACTERS.matcher(nameComponent);
         return disallowed.replaceAll("-");
     }