SPring is showing many security issues in Nexus IQ. bumping the version
of Spring clears these issues.
Issue-ID: POLICY-4070
Change-Id: Ifb2c2e01d85be1908b13e7ffa4cec71777ec55c5
Signed-off-by: liamfallon <liam.fallon@est.tech>
   <name>oparent/dependencies</name>
   <packaging>pom</packaging>
   <properties>
-    <spring.version>5.3.8</spring.version>
+    <spring.version>5.3.19</spring.version>
     <jetty.version>9.4.41.v20210516</jetty.version>
   </properties>
   <dependencyManagement>