Update the version sent to TSPs

Author: skeet70

src/main/java/com/ironcorelabs/tenantsecurity/kms/v1/TenantSecurityRequest.java

@@ -55,7 +55,7 @@ final class TenantSecurityRequest implements Closeable {
   private final int timeout;
 
   // TSC version that will be sent to the TSP.
-  static final String sdkVersion = "7.2.1";
+  static final String sdkVersion = "7.2.2";
 
   TenantSecurityRequest(String tspDomain, String apiKey, int requestThreadSize, int timeout) {
     HttpHeaders headers = new HttpHeaders();