[fix][sec] Upgrade Spring to 6.2.12 to remediate CVE-2025-22233 and CVE-2025-41249 (apache#24903)

(cherry picked from commit 38e0fa1)
(cherry picked from commit 856da6e)

Author: guptas6est

pom.xml

@@ -290,7 +290,7 @@ flexible messaging model and an intuitive client API.</description>
     <kotlin-stdlib.version>1.8.20</kotlin-stdlib.version>
     <nsq-client.version>1.0</nsq-client.version>
     <cron-utils.version>9.1.6</cron-utils.version>
-    <spring.version>6.1.14</spring.version>
+    <spring.version>6.2.12</spring.version>
     <apache-http-client.version>4.5.13</apache-http-client.version>
     <apache-httpcomponents.version>4.4.15</apache-httpcomponents.version>
     <jetcd.version>0.7.7</jetcd.version>